Patent application number | Description | Published |
20100100153 | STIMULATION ELECTRODE SELECTION - Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition may be selected based on the frequency band characteristics of the sensed signals. In some examples, a stimulation electrode combination associated with the sense electrode combination that sensed a bioelectrical brain signal having a relatively highest relative beta band power level may be selected to deliver stimulation therapy to the patient. Other frequency bands characteristics may also be used to select the stimulation electrode combination. | 04-22-2010 |
20110112590 | DEEP BRAIN STIMULATION FOR SLEEP AND MOVEMENT DISORDERS - Delivery of electrical stimulation to the substantia nigra and the subthalamic nucleus of a brain of a patient are independently controlled in order to treat sleep and movement disorders. Electrical stimulation of the subthalamic nucleus may be effective in treating symptoms associated with a movement disorder, and electrical stimulation of the substantia nigra may be effective in treating symptoms associated with a sleep disorder. During a sleep state of the patient, a sleep stage of the patient may be determined, and an electrical stimulation device may be controlled based on the determined sleep stage. Electrical stimulation of the substantia nigra and subthalamic nucleus may be delivered at substantially the same time or at different times. | 05-12-2011 |
20110144521 | STIMULATION ELECTRODE SELECTION - Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition can be selected based on a frequency domain characteristic of the sensed bioelectrical signals. In some examples, a stimulation electrode combination is selected based on a determination of which of the sense electrodes are located closest to a target tissue site, as indicated by the one or more sense electrodes that sensed a bioelectrical brain signal with a relatively highest value of the frequency domain characteristic. In some examples, determining which of the sense electrodes are located closest to the target tissue site may include executing an algorithm using relative values of the frequency domain characteristic. | 06-16-2011 |
20110144715 | STIMULATION ELECTRODE SELECTION - Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition can be selected based on a frequency domain characteristic of the sensed bioelectrical signals. In some examples, a stimulation electrode combination is selected based on a determination of which of the sense electrodes are located closest to a target tissue site, as indicated by the one or more sense electrodes that sensed a bioelectrical brain signal with a relatively highest value of the frequency domain characteristic. In some examples, determining which of the sense electrodes are located closest to the target tissue site may include executing an algorithm using relative values of the frequency domain characteristic. | 06-16-2011 |
20110196446 | ELECTRICAL BRAIN STIMULATION IN GAMMA BAND - This disclosure describes techniques for delivering electrical stimulation to the brain of a patient at a frequency greater than a selected frequency. The techniques may reestablish gamma frequency band activity within the brain of a patient, and thus improve the patient's movements and cognitive states. In one example, the disclosure is directed to a method that includes selecting a frequency within a gamma frequency band and delivering electrical stimulation at a frequency greater than the selected frequency. | 08-11-2011 |
20120116475 | AROUSAL STATE MODULATION WITH ELECTRICAL STIMULATION - In some examples, an arousal network of a brain of a patient can be activated to modify the arousal state of the patient, which may be useful in treating a cognitive disorder of the patient. In some examples, a bioelectrical brain signal indicative of electrical activity in a first portion of the brain is monitored to determine whether the patient is in a first arousal state, and, in response to determining the patient is in the first arousal state, electrical stimulation is delivered to a second portion of the brain to activate an arousal neural network in the first portion of the brain to induce a second arousal state to treat the cognitive disorder, where the second arousal state is different than the first arousal state. | 05-10-2012 |
20120271375 | ELECTRICAL BRAIN THERAPY PARAMETER DETERMINATION BASED ON A BIOELECTRICAL RESONANCE RESPONSE - Various methods and apparatuses are disclosed that concern delivering electrical stimulation to a brain at a plurality of different stimulation frequencies, sensing one or more bioelectrical signals, and identifying a bioelectrical resonance response of the brain to the electrical stimulation. The bioelectrical resonance response may be identified based on a parameter of oscillation of the one or more bioelectrical signals and indicative of resonance of an area of the brain to one stimulation frequency of the plurality of stimulation frequencies. A stimulation frequency parameter for a therapy may be set based on the identified bioelectrical resonance response, wherein the stimulation frequency parameter is set at or near the one stimulation frequency. | 10-25-2012 |
20120277618 | SEIZURE PROBABILITY METRICS - In some examples, systems, devices, and techniques for determining a particular sleep stage of a patient, determining a seizure state of the patient during the particular sleep stage, and generating a seizure probability metric for the particular sleep stage based on the sleep stage and seizure state are described. In some cases, a patient may be more susceptible to seizure events during particular sleep stages. One or more seizure probability metrics indicative of a patient's susceptibility to seizure events during a particular sleep stage may be useful in creating a patient-specific treatment regimen. | 11-01-2012 |
20120277820 | ENTRAINMENT OF BIOELECTRICAL BRAIN SIGNALS - The disclosure relates to the delivery of electrical stimulation therapy to the brain of a patient, e.g., to treat or otherwise manage a patient disorder. In one example, the disclosure relates to a method comprising generating electrical stimulation via a medical device; delivering the electrical stimulation at a first frequency to a brain of a patient when the bioelectrical brain signals of the patient oscillate at a second frequency, where the second frequency corresponds to pathological brain signals of the patient, where the electrical stimulation is selected to entrain the bioeiectrical brain signals of the patient; and adjusting the delivered electrical stimulation from the first frequency to a third frequency, where adjusting the delivered electrical stimulation changes the bioelectrical brain signal oscillations to a fourth frequency different from the second frequency. The fourth frequency may correspond to an oscillation frequency of non-pathological brain signals of the patient. | 11-01-2012 |
20130197605 | STIMULATION ELECTRODE SELECTION - Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition may be selected based on the frequency band characteristics of the sensed signals. In some examples, a stimulation electrode combination associated with the sense electrode combination that sensed a bioelectrical brain signal having a relatively highest relative beta band power level may be selected to deliver stimulation therapy to the patient. Other frequency bands characteristics may also be used to select the stimulation electrode combination. | 08-01-2013 |
20130268019 | ELECTRICAL STIMULATION PROGRAMMING - In one example, the disclosure relates to a method comprising receiving at least one electrical stimulation parameter value defining electrical stimulation for delivery via one or more electrodes to a tissue site, and determining, via one or more processors, a volume of sub-activation threshold impact for tissue from the delivery of the electrical stimulation to the tissue site. | 10-10-2013 |
20140135869 | STIMULATION ELECTRODE SELECTION - Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition may be selected based on the frequency band characteristics of the sensed signals. In some examples, a stimulation electrode combination associated with the sense electrode combination that sensed a bioelectrical brain signal having a relatively highest relative beta band power level may be selected to deliver stimulation therapy to the patient. Other frequency bands characteristics may also be used to select the stimulation electrode combination. | 05-15-2014 |
20140135870 | STIMULATION ELECTRODE SELECTION - Bioelectrical signals may be sensed within a brain of a patient with a plurality of sense electrode combinations. A stimulation electrode combination for delivering stimulation to the patient to manage a patient condition may be selected based on the frequency band characteristics of the sensed signals. In some examples, a stimulation electrode combination associated with the sense electrode combination that sensed a bioelectrical brain signal having a relatively highest relative beta band power level may be selected to deliver stimulation therapy to the patient. Other frequency bands characteristics may also be used to select the stimulation electrode combination. | 05-15-2014 |
20140358024 | PATIENT STATE DETERMINATION BASED ON ONE OR MORE SPECTRAL CHARACTERISTICS OF A BIOELECTRICAL BRAIN SIGNAL - In some examples, a processor determines a patient state based on activity of a bioelectrical brain signal of a patient in one or more frequency sub-bands of a frequency band of interest. For example, a processor may determine a patient state based on the power level of a bioelectrical brain signal of the patient in one or more frequency sub-bands of a frequency band, or based on a spectral pattern of a bioelectrical brain signal in a frequency band, such as a shift in a power distribution between sub-bands, a change in the peak frequency within one or more sub-bands, a pattern of the power distribution over one or more frequency sub-bands, or a width or a variability of one or more sub-bands exhibiting a relatively high or low level of activity | 12-04-2014 |
20140371544 | MOTION-BASED BEHAVIOR IDENTIFICATION FOR CONTROLLING THERAPY - Devices, systems, and techniques for analyzing video information to objectively identify patient behavior are disclosed. A system may analyze obtained video information of patient motion during a period of time to track one or more anatomical regions through a plurality of frames of the video information and calculate one or more movement parameters of the one or more anatomical regions. The system may also compare the one or more movement parameters to respective criteria for each of a plurality of predetermined patient behaviors and identify the patient behaviors that occurred during the period of time. In some examples, a device may control therapy delivery according to the identified patient behaviors and/or sensed parameters previously calibrated based on the identified patient behaviors. | 12-18-2014 |
20140371599 | MOTION ANALYSIS FOR BEHAVIOR IDENTIFICATION - Devices, systems, and techniques for analyzing video information to objectively identify patient behavior are disclosed. A system may analyze obtained video information of patient motion during a period of time to track one or more anatomical regions through a plurality of frames of the video information and calculate one or more movement parameters of the one or more anatomical regions. The system may also compare the one or more movement parameters to respective criteria for each of a plurality of predetermined patient behaviors and identify the patient behaviors that occurred during the period of time. In some examples, a device may control therapy delivery according to the identified patient behaviors and/or sensed parameters previously calibrated based on the identified patient behaviors. | 12-18-2014 |
20150265207 | SLEEP STAGE DETECTION - Therapy delivery to a patient may be controlled based on a determined sleep stage of the patient. In examples, the sleep stage may be determined based on a frequency characteristic of a biosignal indicative of brain activity of the patient. A frequency characteristic may include, for example, a power level within one or more frequency bands of the biosignal, a ratio of the power level in two or more frequency bands, or a pattern in the power level of one or more frequency bands over time. A therapy program may be selected or modified based on the sleep stage determination. Therapy may be delivered during the sleep stage according to the selected or modified therapy program. In some examples, therapy delivery may be controlled after making separate determinations of a sleep stage based on the biosignal and another physiological parameter, and confirming that the sleep stage determinations are consistent. | 09-24-2015 |
20150306391 | DEEP BRAIN STIMULATION FOR SLEEP DISORDERS - In some examples, a medical device delivers electrical stimulation to the external portion of the globus pallidus of a brain of a patient in order to treat a sleep impairment of the patient. In some examples, the electrical stimulation may be delivered via one or more electrodes implanted in the GPe of the brain. In some examples, an electrical stimulation device is configured to deliver electrical stimulation therapy to the GPe based on detection of a sleep state of a patient. The sleep state may include, for example, a state in which the patient is awake and intending on sleeping, is awake and attempting to sleep or has initiated sleep. In addition, in some examples, an electrical stimulation device is configured to deliver electrical stimulation therapy to the GPe based on detection of an awake state of a patient. | 10-29-2015 |
Patent application number | Description | Published |
20090029109 | AEROGEL COMPOSITES - Aerogel composites and bonded aerogel composites are described. The aerogel composites include monolithic aerogel material located in cavities between a base layer and a structured layer that is bonded to the base layer. Additional layers may be bonded to the base layer and/or the structured layer to form bonded aerogel composites. | 01-29-2009 |
20100110551 | LIGHT EXTRACTION FILM WITH HIGH INDEX BACKFILL LAYER AND PASSIVATION LAYER - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, a high index backfill layer, and an optional passivation layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 05-06-2010 |
20100255183 | ELECTROCHROMIC DEVICE BASED ON LAYER BY LAYER DEPOSITION - An electrode is described. The electrode includes a substrate having a first and a second surface, a conductive layer, multilayer structure having alternating layers of at least one polymer layer and at least one electroactive chemical bound nanoparticle layer. The conductive layer is disposed on the second surface of the substrate, and the multilayer structure is disposed on the conductive layer. | 10-07-2010 |
20110017963 | NANOPARTICLE DISPERSION, COMPOSITIONS CONTAINING THE SAME, AND ARTICLES MADE THEREFROM - A dispersion that includes at least one organic solvent; nanoparticles, wherein the nanoparticles are infrared absorptive, conductive or a both infrared absorptive and conductive; and at least one polycaprolactone-polyamine copolymer, wherein the dispersion comprises agglomerates of the nanoparticles and a majority of the agglomerates have an average diameter that are not greater than 100 nanometers. Compositions, films, articles and light control articles that utilize such dispersions are also discussed. | 01-27-2011 |
20110079668 | METHODS OF COMPOUNDING NANOPARTICLES WITH A RESIN - Methods of compounding nanoparticles (e.g., surface-modified silica nanoparticles) with a resin (e.g., a curable resin) are described. The methods use continuous wet milling technology and can be used to compound nanoparticles, including highly aggregated and agglomerated surface-modified nanoparticles, into a resin or resin precursor. | 04-07-2011 |
20110237692 | TELECHELIC HYBRID AEROGELS - Methods of forming hybrid aerogels are described. The methods include forming a hybrid aerogel from a metal oxide precursor and a branched telechelic copolymer, e.g., co-hydrolyzing and co-condensing the metal oxide precursor and the branched telechelic copolymer. Aerogels and aerogel articles, including hydrophobic aerogels and hydrophobic aerogel articles are also described. | 09-29-2011 |
20110240907 | HYDROPOHOBIC AEROGELS - Methods of making hydrophobic aerogels are described. Disclosed methods include forming a surface-modified metal oxide aerogel precursor from a sol comprising a solvent, a metal oxide precursor, and a hydrophobic surface modifying agent. The resulting modified precursor can be dried to from hydrophobic aerogels. Methods of forming the surface-modified metal oxide aerogel precursor include hydrolyzing the metal oxide precursor and co-condensing the hydrolyzed metal oxide precursor and the hydrophobic surface modifying agent. Hydrophobic aerogels and hydrophobic aerogel articles are also disclosed. | 10-06-2011 |
20110245359 | METHODS OF PREPARING HYBRID AEROGELS - Methods of preparing hybrid aerogels are described. The methods include co-condensing a metal oxide precursor and an organo-functional metal oxide precursor, and crosslinking the organo-functional groups with an ethylenically-unsaturated crosslink agent. Thermal energy and actinic radiation crosslinking are described. Both supercritical aerogel and xerogels, including hydrophobic supercritical aerogel and xerogels, are described. Aerogel articles, including flexible aerogel articles are also disclosed. | 10-06-2011 |
20120214948 | SOLVENTLESS FUNCTIONALIZATION, MILLING, AND COMPOUNDING PROCESS WITH REACTIVE DILUENTS - Methods of compounding nanoparticles with a resin, e.g., a curable resin and one or more surface modifying agents are described. The methods use wet milling technology, including both continuous and batch milling processes, and can be used to functionalize the nanoparticles and disperse the functionalized nanoparticles into the resin system in a single process. Methods of compounding curable resin systems containing reactive diluents are also disclosed. | 08-23-2012 |
20130253139 | Dry, Surface-Modified Nanocalcite - Nanoparticle compositions including calcite and a surface-modifying agent bonded to the calcite are described. The surface-modifying agent includes a binding group bonded to the calcite and a compatiblizing segment. The compatiblizing segment includes at least one of a polyethylene oxide, a polypropylene oxide, a polyester, a polyamide, or a combination thereof. The composition includes less than 2 wt. % solvents and/or resins. Methods of preparing nanoparticle compositions are also described. | 09-26-2013 |
20140022644 | ANTIREFLECTIVE FILM COMPRISING LARGE PARTICLE SIZE FUMED SILICA - Antireflective films are described comprising a light transmissive substrate and a low refractive index layer disposed on the light transmissive substrate. The low refractive index layer comprises the reaction product of polymerizable resin composition comprising at least 20 wt-% fumed silica. In one embodiment, the polymerizable resin is ethylenically unsaturated. In a favored embodiment, the low refractive index layer increases in porosity from the light transmissive substrate interface to an opposing porous surface. | 01-23-2014 |
20140080934 | TELECHELIC HYBRID AEROGELS - Hybrid aerogels that contain a metal oxide precursor and a branched telechelic copolymer are described. Aerogels and aerogel articles, including hydrophobic aerogels and hydrophobic aerogel articles are also described. | 03-20-2014 |
20150318080 | PARTICLE LOADED, FIBER-REINFORCED COMPOSITE MATERIALS - A composite material includes a plurality of fibers embedded in a metal matrix. The composite material further includes a plurality of particles disposed in the metal matrix. At least 25% of the fibers contact or are spaced less than 0.2 micrometers from an adjacent fiber within the metal matrix. | 11-05-2015 |
Patent application number | Description | Published |
20080305298 | LASER ACTIVATION OF ELASTIC LAMINATES - There is provided a method of activating a substantially inelastic laminate to an elastic state by providing an elastic layer bonded on at least one face to a fibrous facing layer. The laminate is directed under laser beams so as to cut fibers of the at least one fibrous facing layer along perforation lanes in at least one region forming a laminate that is extensible and elastic in a direction generally transverse to the direction of the perforation lanes. This laminate is particularly adapted for use in personal care articles. | 12-11-2008 |
20100182666 | SHEETING WITH COMPOSITE IMAGE THAT FLOATS - Techniques are described for forming microlens sheeting having composite images that appear to float with respect to the plane of the sheeting. As one example, a method comprises forming one or more images within a sheeting having a surface of microlenses, wherein at least one of the images is a partially complete image, and wherein each of the images is associated with a different one of the microlenses, wherein the microlenses have refractive surfaces that transmit light to positions within the sheeting to produce a plurality of composite images from the images formed within the sheeting so that each of the composite images appears to float with respect to the plane of the sheeting, and wherein forming the one or more images comprises forming the one or more images such that each of the composite images is associated with a different viewing angle range. | 07-22-2010 |
20110121557 | MULTILAYER ARTICLES CAPABLE OF FORMING COLOR IMAGES - Multi-layer articles capable of forming color images are provided. The articles include a multi-layer construction with at least two layers in which at least one of the layers includes a thermally activatable composition. The thermally activatable composition includes a non-linear light to heat converter composition and a color forming compound. Upon activation with a light source an image forms. | 05-26-2011 |
20110269865 | THREE-DIMENSIONAL ARTICLES USING NONLINEAR THERMAL POLYMERIZATION - A method for building three-dimensional articles using a thermal polymerization process in provided. The articles are built by using a composition that includes a thermally polymerizable composition, a thermal initiator, and a nonlinear light-to-heat conversion material such as a reverse saturable dye. The article is built by the sequential exposure of adjacent voxels with a laser beam. Microlens arrays can be used to expose more than one voxel at a time. | 11-03-2011 |
20120122383 | DOATED ABRASIVE ARTICLE AND METHODS OF ABLATING COATED ABRASIVE ATRICLES - A coated abrasive article comprises an abrasive layer secured to a backing. The abrasive layer comprises abrasive particles secured by at least one binder to a first major surface of the backing. A supersize is disposed on at least a portion of the abrasive layer. The coated abrasive article has a melt flow zone adjacent to an edge of the coated abrasive article, wherein the melt flow zone has a maximum width of less than 100 micrometers, and the melt flow zone has a maximum height of less than 40 micrometers. Methods of using infrared lasers to ablate coated abrasive articles are also disclosed, wherein a laser wavelength is matched to a component of the coated abrasive article. | 05-17-2012 |
20120141752 | LASER MARKING PROCESS AND ARTICLES - A process to mark a multilayered article with a laser ( | 06-07-2012 |
20130212952 | Laser Method for Making Shaped Ceramic Abrasive Particles, Shaped Ceramic Abrasive Particles, and Abrasive Articles - A method of making shaped ceramic abrasive particles includes cutting a layer of ceramic precursor material using a laser beam and forming shaped ceramic precursor particles. Further thermal processing provides shaped ceramic abrasive particles. Shaped ceramic abrasive particles producible by the methods and abrasive articles containing them are also disclosed. | 08-22-2013 |
20130264730 | LASER CUTTING METHOD AND ARTICLES PRODUCED THEREWITH - Laser cutting of multilayer optical film bodies comprising polyester and polycarbonate materials. | 10-10-2013 |
20130270239 | APPARATUS AND METHOD FOR LASER CUTTING USING A SUPPORT MEMBER HAVING A GOLD FACING LAYER - The present application relates to an apparatus ( | 10-17-2013 |
20140332254 | LASER PATTERNING OF SILVER NANOWIRE - BASED TRANSPARENT ELECTRICALLY CONDUCTING COATINGS - A transparent electrical conductor ( | 11-13-2014 |
20150259495 | SILICONE COMPOSITIONS AND RELATED METHODS - Crosslinked silicone foams are provided that can be substantially free of chemical blowing agents or byproducts thereof. These foams can be prepared from polymerizable silicone compositions that include an MQ-water cluster including a silicate MQ resin and a quantity of water dispersed in the silicate MQ resin and a silicone fluid, wherein the MQ-water cluster and silicone fluid collectively provide a inverted emulsion having a continuous and a discontinuous phase, the continuous phase including the silicone fluid and the discontinuous phase including the MQ-water cluster. The foams can be made by dispersing water into a silicate MQ resin to provide an MQ-water cluster; dispersing the stabilized MQ-water cluster into a silicone fluid to obtain an inverted silicone emulsion having the MQ-water cluster as a discontinuous phase and the silicone fluid as a continuous phase; foaming the silicone emulsion by evolving the water in the MQ-water cluster to provide a cellular structure; and polymerizing the silicone emulsion. | 09-17-2015 |
Patent application number | Description | Published |
20080293117 | HEAT RESISTANT BIOACTIVE COMPOSITION - A bioactive composition includes a hydrogel matrix. At least one protein is immobilized in the hydrogel matrix. The digestive protein has a half-life at least 1000 times longer than the half-life of a free digestive protein counterpart. | 11-27-2008 |
20100279376 | PREPARATION OF SOLVENT-BORNE POLYMERIC BIOACTIVE COATINGS - Processes for preparation of a protein-polymer composite material are provided according to embodiments of the present invention which include providing an admixture of a polymer resin, a surfactant and a non-aqueous organic solvent. An aqueous solution containing bioactive proteins and substantially free of surfactant is mixed with the admixture. The emulsion is mixed with a crosslinker to produce a curable composition. The curable composition is cured, thereby producing the protein-polymer composite material. | 11-04-2010 |
20110076738 | SOLVENT-BORNE POLYMERIC BIOACTIVE COATINGS FOR THE FACILITATED REMOVAL OF BIOORGANIC STAINS - Protein-polymer composite materials are provided according to embodiments of the present invention that include an admixture of a polymer resin, a surfactant and a non-aqueous organic solvent. An aqueous solution containing bioactive proteins is mixed with the admixture. The emulsion is mixed with a crosslinker to produce a curable composition. The curable composition is cured, thereby producing the protein-polymer composite material that is useful for facilitating removal of bioorganic stains. | 03-31-2011 |
20110229916 | NANOFIBERS WITH HIGH ENZYME LOADING FOR HIGHLY SENSITIVE BIOSENSORS - The invention provides high enzyme loading nanofibers and processes utilized in their fabrication, the nanofibers suitable for use as a new class of highly sensitive and stable biosensors capable of monitoring glucose at low levels. The biosensors, comprising nanofiber enzyme materials fabricated from organic solvent-based polymer-enzyme systems, can be used effectively in non-invasive transdermal biosensing applications. | 09-22-2011 |
20110312057 | LIPASE-CONTAINING POLYMERIC COATINGS FOR THE FACILITATED REMOVAL OF FINGERPRINTS - A substrate or coating is provided that includes a lipase with enzymatic activity toward a component of a fingerprint. Also provided is a process for facilitating the removal of fingerprints is provided wherein an inventive substrate or coating including a lipase is capable of enzymatically degrading of one or more components of the fingerprint to facilitate fingerprint removal from the substrate or said coating. Applying heat to the substrate or coating increases the rate of fingerprint removal. | 12-22-2011 |
20120093802 | BIOACTIVE COMPOSITION INCLUDING STABILIZED PROTEIN AND PROCESS FOR PRODUCING THE SAME - A bioactive composition includes a porous hydrogel matrix. At least one protein is immobilized in the porous hydrogel matrix forming a hydrogel protein composite that is stable in an organic solvent. A process for stabilizing a bioactive composition includes the steps of: forming hydrogel matrix pores around protein molecules and reducing a water content within the hydrogel matrix pores forming a hydrogel protein composite that is stable in an organic solvent. | 04-19-2012 |
Patent application number | Description | Published |
20100050582 | PLEATED ALIGNED WEB FILTER - A filter element in the form of a nonwoven self-supporting filtration web having rows of folded or corrugated spaced-apart pleats, the web containing continuous thermoplastic fibers a majority of which are aligned at 90°±20° with respect to the row direction. The filter element can be made by forming rows of pleats in such a nonwoven web and cutting the web to a desired size and shape. The filter elements can provide improved mechanical and filtration properties and can exhibit reduced susceptibility to pleat deformation and the loss of space between pleats. | 03-04-2010 |
20130030340 | NONWOVEN FIBROUS WEBS CONTAINING CHEMICALLY ACTIVE PARTICULATES AND METHODS OF MAKING AND USING SAME - Nonwoven fibrous webs including a multiplicity of randomly oriented discrete fibers and a multiplicity of chemically active particulates secured to the web, and methods of making and using same. In some embodiments, more than 0% and less than 10% wt. of the nonwoven fibrous web is made of multi-component fibers having at least a first region exhibiting a first melting temperature and a second region exhibiting a second melting temperature greater than the first melting temperature. In other embodiments, the discrete fibers include a first population of monocomponent thermoplastic fibers having a first melting temperature, and a second population of monocomponent fibers having a second melting temperature greater than the first melting temperature. In certain embodiments, at least some of the particulates are bonded to the fibers. In other embodiments, at least some of the particulates are secured within interstices of the fibrous web, without substantial bonding to the fibers. | 01-31-2013 |
20130037481 | NONWOVEN NANOFIBER WEBS CONTAINING CHEMICALLY ACTIVE PARTICULATES AND METHODS OF MAKING AND USING SAME - Nonwoven fibrous webs including a multiplicity of discrete fibers, a population of sub-micrometer fibers having a population median diameter less than one micrometer adjoining the discrete fibers, and a multiplicity of chemically active particulates secured to the nonwoven fibrous web. In some embodiments, more than 0% and less than 10% wt. of the nonwoven fibrous web is made of discrete fibers that are thermoplastic polymeric fibers, and which optionally at least partially melt and coalesce to secure the discrete polymeric fibers to each other. In certain embodiments, at least some of the particulates are bonded to the thermoplastic polymeric fibers. In other embodiments, at least some of the particulates are secured within interstices of the fibrous web, without substantial bonding to the discrete fibers. Methods of making and using such nonwoven fibrous webs are also described. | 02-14-2013 |
20130101805 | PATTERNED AIR-LAID NONWOVEN FIBROUS WEBS AND METHODS OF MAKING AND USING SAME - Nonwoven fibrous webs including randomly oriented discrete fibers defining a multiplicity of non-hollow projections extending from a major surface of the nonwoven fibrous web (as considered without the projections), and a plurality of substantially planar land areas formed between each adjoining projection in a plane defined by and substantially parallel with the major surface. In some exemplary embodiments, the randomly oriented discrete fibers include multi-component fibers having at least a first region having a first melting temperature and a second region having a second melting temperature, wherein the first melting temperature is less than the second melting temperature. At least a portion of the oriented discrete fibers are bonded together at a plurality of intersection points with the first region of the multi-component fibers. In certain embodiments, the patterned air-laid nonwoven fibrous webs include particulates. Methods of making and using such patterned air-laid nonwoven fibrous webs are also disclosed. | 04-25-2013 |
20130108831 | PATTERNED AIR-LAID NONWOVEN ELECTRET FIBROUS WEBS AND METHODS OF MAKING AND USING SAME | 05-02-2013 |
20130146061 | RESPIRATOR MADE FROM IN-SITU AIR-LAID WEB(S) - A method of making a filtering face piece respirator, which method includes: providing a cup shaped mold | 06-13-2013 |
20140120322 | NON-WOVEN ELECTRET FIBROUS WEBS AND METHODS OF MAKING SAME - A non-woven electret fibrous web for electrostatic adsorption and odor elimination and the preparation process thereof. In certain exemplary embodiments, the non-woven electret fibrous web includes a multiplicity of electret fibers, at least one of a plurality of photo-catalytic fibers or a plurality of multi-component fibers; and optionally, at least one of a plurality of chemically-active particulates, a plurality of carbon-based fibers, or a plurality of mono-component thermoplastic fibers. In other exemplary embodiments, carding and cross-lapping or air-laying processes are disclosed for making nonwoven fibrous webs including electret fibers and one or more of photocatalytic fibers, chemically-active particulates, multi-component fibers, mono-component thermoplastic fibers, or carbon-based fibers. In some exemplary embodiments, exemplary non-woven electret fibrous webs of the disclosure exhibit superior gas permeation characteristics, high adsorption characteristics for airborne contaminants, as well as an odor elimination function. | 05-01-2014 |
20140331456 | METHODS AND APPARATUS FOR PRODUCING NONWOVEN FIBROUS WEBS - Methods and apparatus including a chamber having a substantially open lower end positioned above a collector surface, at least one fiber inlet positioned above the lower end, a first multiplicity of rollers positioned within the chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, a second multiplicity of rollers positioned within the chamber above the first multiplicity of rollers wherein each of the second multiplicity of rollers has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, the second multiplicity of rollers positioned so at least a portion of the projections extending outwardly from the circumferential surfaces of each of the second multiplicity of rollers vertically overlaps with at least a portion of the projections extending outwardly from the circumferential surface of at least one of the first multiplicity of rollers. | 11-13-2014 |
20150021805 | APPARATUS AND METHODS FOR PRODUCING NONWOVEN FIBROUS WEBS - Methods and apparatus including a fiber opening chamber having an open upper end and a lower end, at least one fiber inlet for introducing a multiplicity of fibers into the opening chamber, a first multiplicity of rollers positioned within the opening chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, at least one gas emission nozzle positioned substantially below the first multiplicity of rollers to direct a gas stream generally towards the open upper end of the opening chamber, and a forming chamber having an upper end and a lower end, wherein the upper end of the forming chamber is in flow communication with the open upper end of the opening chamber, and the lower end of the forming chamber is substantially open and positioned above a collector having a collector surface. | 01-22-2015 |
Patent application number | Description | Published |
20080243953 | IMPLEMENTING READ/WRITE, MULTI-VERSIONED FILE SYSTEM ON TOP OF BACKUP DATA - Various embodiments of a computer system and methods are disclosed. In one embodiment, a computer system includes hosts coupled to a backup medium. The backup medium stores data segments and objects, each object referencing one or more segments. A second host conveys a write request to a first host identifying a data entity comprising segments referenced by a first object. The first host restores a copy of the data entity and creates a second object referencing the segments that were referenced by the first object in response to receiving the write request. The first host adds segment references to the second object in response to receiving a change that adds data to the copy or deletes a portion of a segment from the copy. The first host removes a segment reference from the second object if a change deletes all of a segment from the copy. | 10-02-2008 |
20110093439 | De-duplication Storage System with Multiple Indices for Efficient File Storage - A de-duplication storage system which uses multiple indices is described. A first group of one or more indices may be stored in random access memory (RAM) or another type of fast storage. A second group of one or more indices may be stored on one or more disk drives or another type of storage where large amounts of data can be stored inexpensively. The first group of indices may be used when adding new files to the de-duplication storage system in order to determine whether the file segments of the new files are already stored. The second group of indices may be used when restoring files in order to lookup the segments of the files. | 04-21-2011 |
20120209814 | PROCESSES AND METHODS FOR CLIENT-SIDE FINGERPRINT CACHING TO IMPROVE DEDUPLICATION SYSTEM BACKUP PERFORMANCE - A system and method for caching fingerprints in a client cache is provided. A data object that comprises a set of data segments and describes a backup process is identified. Thereafter, a request referencing the data object is made to a deduplication server to request that a task identifier be added to the data object. If the deduplication server is able to successfully add the task identifier to the data object, then an active identifier is added to each data segment from the set of data segments in a cache that is within a client system. | 08-16-2012 |
20130110784 | MANAGING BACKUPS OF DATA OBJECTS IN CONTAINERS | 05-02-2013 |
20140337591 | SYSTEMS AND METHODS FOR INCREASING RESTORE SPEEDS OF BACKUPS STORED IN DEDUPLICATED STORAGE SYSTEMS - A computer-implemented method for increasing restore speeds of backups stored in deduplicated storage systems may include (1) identifying a backup that includes data stored in at least one data container within a deduplicated storage system, (2) detecting a subsequent backup that includes additional data, (3) calculating an amount of duplication between the additional data included in the subsequent backup and the data stored in the data container, (4) determining that the amount of duplication between the additional data and the data stored in the data container is below a predetermined threshold, (5) identifying at least one additional data container to store the additional data instead of deduplicating the additional data with respect to the data container, and then (6) storing the additional data in the additional data container to facilitate increasing a restore speed of the subsequent backup. Various other methods, systems, and computer-readable media are also disclosed. | 11-13-2014 |
20150046403 | Processes and Methods For Client-Side Fingerprint Caching To Improve Deduplication System Backup Performance - A system and method for caching fingerprints in a client cache is provided. A data object that comprises a set of data segments and describes a backup process is identified. Thereafter, a request referencing the data object is made to a deduplication server to request that a task identifier be added to the data object. If the deduplication server is able to successfully add the task identifier to the data object, then an active identifier is added to each data segment from the set of data segments in a cache that is within a client system. | 02-12-2015 |
20150095596 | Techniques for Improving Performance of a Backup System - Techniques for improving performance of a backup system are disclosed. In one particular exemplary embodiment, the techniques may be realized as a method for improving performance of a backup system. The method may comprise performing a backup of a client device, tracking, using at least one computer processor, references to data segments that are located outside of a unit of storage associated with the backup, calculating utilization of the unit of storage associated with the backup based on the tracked references, determining if the calculated utilization meets a specified parameter, and determining one or more responsive actions in the event the calculated utilization meets the specified parameter. | 04-02-2015 |
Patent application number | Description | Published |
20100263865 | PROPPANTS AND USES THEREOF - Compositions comprising a proppant core having an outer surface and polymeric microspheres attached to at least a portion of the outer surface are described. The compositions are useful, for example, to increase the productivity of a hydrocarbon oil or gas bearing well. | 10-21-2010 |
20100263870 | METHODS OF CONTACTING AND/OR TREATING A SUBTERRANEAN FORMATION - Methods of contacting a subterranean formation are described which provide improved control or reduction of particulate migration, transport or flowback in wellbores and reservoirs, and which may do so without sacrificing substantial hydraulic conductivity. One method comprises injecting into a well-bore intersecting the subterranean formation a fluid composition comprising a first component and a second component dispersed in a carrier fluid, at least a portion of the first component or second component being provided as at least one multicomponent article having an aspect ratio greater than 1:1.1; forming a network comprising the first component; and binding the network with the second component. | 10-21-2010 |
20100272994 | MULTI-COMPONENT FIBERS - Multi-component fibers comprising at least one polymer having a softening temperature up to 150° C., and another polymer having a melting point of at least 130° C. The fibers are non-fusing up to at least 110° C. The fibers are useful, for example, for flowback control in wellbores and reservoirs. | 10-28-2010 |
20100282468 | FRACTURING FLUID COMPOSITIONS COMPRISING SOLID EPOXY PARTICLES AND METHODS OF USE - Fluid compositions and methods of making and using same are described, the fluid compositions comprising at least one solid epoxy particle, at least one epoxy resin curing agent, and at least one type of proppant particles. The methods comprise deploying a fluid composition into a wellbore extending to a subterranean geological formation using pressure sufficient to form a fracture in the subterranean geological formation, and immobilizing at least a portion of the solid epoxy particles and proppant particles in the fracture. Embodiments of the fluid compositions are useful for increasing hydrocarbon production from subterranean geologic formations, and/or controlling solids migration in such formations. | 11-11-2010 |
20100288495 | METHODS OF TREATING SUBTERRANEAN WELLS USING CHANGEABLE ADDITIVES - Fluid compositions and methods of making and using same are described, one composition comprising a well treatment fluid and an additive combined with the well treatment fluid, wherein the additive is selected from solids, liquids and combinations thereof, the additive having a surface shape, at least one property of the surface shape enabling it to change under influence of a controllable parameter after the composition is deployed into a hydraulic fracture or gravel pack. In methods of the disclosure, the additive exists initially in a first state, and then is changed to a second state. The first state may increase proppant flowback efficiency, while the second state may increase hydraulic conductivity. In certain embodiments, the additive may change back to its first state. | 11-18-2010 |
20100288500 | FIBER AGGREGATE - Fiber aggregate comprising organic polymeric fibers, wherein the organic polymeric fibers have an average length in a range from 2 to 20 millimeters, an average diameter up to 100 micrometer, and comprise at least 75 percent by solid volume of the fiber aggregate, wherein the fiber aggregate has an unrestrained bulk density of at least 0.05 g/cm | 11-18-2010 |
20110247823 | METHOD OF CONTACTING HYDROCARBON-BEARING FORMATIONS WITH FLUORINATED PHOSPHATE AND PHOSPHONATE COMPOSITIONS - Method comprising contacting a hydrocarbon-bearing formation with a composition comprising solvent and a fluoropolyether compound. The fluoropolyether compound: is represented by formula Rf—[C(0)—NR | 10-13-2011 |
20110253366 | CURABLE FIBER - Fibers comprising a first thermoplastic composition having a softening temperature up to 120° C and a curable resin. Also disclosed are compositions comprising a plurality of fibers, with some of the fibers comprising a first thermoplastic composition having a softening temperature up to 120° C and some of the fibers comprising a curable resin. The fibers have an aspect ratio of at least 2:1 and a maximum cross-sectional dimension up to 60 micrometers. Fluid compositions containing the fibers and methods of contacting a subterranean formation using the fibers are also disclosed. | 10-20-2011 |
20110253372 | PARTICLES COMPRISING BLOCKED ISOCYANATE RESIN AND METHOD OF MODIFYING A WELLBORE USING THE SAME - A plurality of solid particles including a thermoplastic composition having a softening temperature in a range from 50° C. to 180° C. and a blocked isocyanate resin; optionally at least some of the particles in the plurality of solid particles comprise both the thermoplastic composition and the blocked isocyanate resin. A composition comprising the plurality of particles dispersed in a fluid is also disclosed. A method of modifying a wellbore within a geological formation is also disclosed. The method includes introducing the fluid composition into the wellbore. A method of making a plurality of particles, for example, to use in the fluid composition, is also disclosed. | 10-20-2011 |
20110284245 | FLUID COMPOSITION COMPRISING PARTICLES AND METHOD OF MODIFYING A WELLBORE USING THE SAME - Composition including a fluid and a plurality of solid particles dispersed in the fluid. The plurality of solid particles includes a thermoplastic composition having a softening temperature in a range from 50° C. to 180° C. and a curable resin; optionally at least some of the particles in the plurality of solid particles comprise both the thermoplastic composition and the curable resin. The solid particles have an average aspect ratio of less than 2:1. A method of modifying a wellbore within a geological formation is also disclosed. The method includes introducing the composition into the wellbore. A method of making a plurality of particles, for example, to use in the composition, is also disclosed. | 11-24-2011 |
20120055668 | SOLVENTS AND COMPOSITIONS FOR TREATING HYDROCARBON-BEARING FORMATIONS - A method of treating a hydrocarbon-bearing formation that includes receiving data comprising a temperature and a brine composition of the hydrocarbon-bearing formation; selecting a treatment composition for the hydrocarbon-bearing formation comprising a fluorinated compound and solvent, wherein, at the temperature, a mixture of an amount of the brine composition and the treatment composition separates into at least two separate transparent liquid layers, and wherein the mixture is free of precipitated solid; and contacting the hydrocarbon-bearing formation with the treatment composition. Compositions containing certain fluorinated polymers and solvents containing water, monohydroxy alcohols, and ketones are also disclosed. | 03-08-2012 |
20120097393 | METHODS FOR TREATING CARBONATE HYDROCARBON-BEARING FORMATIONS WITH FLUORINATED AMPHOTERIC COMPOUNDS - Method of treating a carbonate hydrocarbon-bearing formation. The method includes contacting the hydrocarbon-bearing formation with a composition comprising solvent and a fluorinated amphoteric compound. Carbonate hydrocarbon-bearing formations treated according to the method are also disclosed. | 04-26-2012 |
20130269932 | METHODS FOR TREATING CARBONATE HYDROCARBON-BEARING FORMATIONS WITH FLUORINATED AMINE OXIDES - A method of treating a carbonate hydrocarbon-bearing formation is disclosed. The method includes contacting the hydrocarbon-bearing formation with a composition comprising solvent and a fluorinated amine oxide. Carbonate hydrocarbon-bearing formations treated according to the method are also disclosed. | 10-17-2013 |
20130274385 | CONTROLLED DEGRADATION FIBERS - There is provided controlled degradation fibers, and methods of making such controlled degradation fibers. | 10-17-2013 |
20130284518 | METHOD OF USING MULTI-COMPONENT FIBERS AS LOST-CIRCULATION MATERIAL - A method of forming a subterranean well and a method of reducing lost circulation in a subterranean well while drilling the subterranean well are disclosed. The methods include using multi-component fibers as lost-circulation materials. The multi-component fibers having external surfaces and include at least a first polymeric composition and a second polymeric composition. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition, which at least partially adhesively bonds the mud cake formed during the method. | 10-31-2013 |
20130310491 | DEGRADABLE FIBERS - There is provided self-degrading fibers, and methods of making and methods of using such self-degrading fibers. | 11-21-2013 |
20130338271 | DEGRADABLE MATERIALS - The present disclosure relates to a degradable material comprising (a) from about 60 weight percent to about 97 weight percent of a first material based on the total weight of the degradable material, and (b) from about 3 weight percent to about 40 weight percent of a second material based on the total weight of the degradable material, where the second material is an oligomer comprising lactate and giycolate. In another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a Tg less than 56° C. In still another aspect, the present disclosure provides a degradable material comprising (a) poly lactic acid, and (b) an oligomer comprising lactate and giycolate, wherein the degradable material has a tan delta peak of less than 65° C. It has been surprisingly found that the degradable materials according to the present disclosure provide physical properties that are not inherent to poly lactic acid alone. It has also been surprisingly found that the degradable materials disclosed herein provide improvements with respect to the processability, production costs, flexibility and ductility without decreasing their degradability. | 12-19-2013 |
20140014330 | METHODS FOR TREATING SILICICLASTIC HYDROCARBON-BEARING FORMATIONS WITH FLUORINATED AMINE OXIDES - A method of treating a siliciclastic, hydrocarbon-bearing formation is disclosed. The method includes contacting the hydrocarbon-bearing formation with a composition comprising solvent and a fluorinated amine oxide. Siliciclastic, hydrocarbon-bearing formations treated according to the method are also disclosed. | 01-16-2014 |
20140138305 | ARTICLES INCLUDING MULTI-COMPONENT FIBERS AND PARTICLES AND METHODS OF MAKING AND USING THE SAME - An article including multi-component fibers and particles is disclosed. The multi-component fibers include at least a first polymeric composition and a second polymeric composition, are adhered together, and are non-fusing at a temperature of at least 110° C. At least a portion of the external surfaces of the multi-component fibers includes the first polymeric composition. Particles are adhered or directly attached to the first polymeric composition on the external surfaces of at least some of the multi-component fibers along their lengths. The particles include at least one of activated carbon, superabsorbent polymer particles, and abrasive particles. In some embodiments, the particles are distributed throughout the thickness of a web of the multi-component fibers. A method of making the articles is also disclosed. | 05-22-2014 |
20140141676 | ARTICLE INCLUDING MULTI-COMPONENT FIBERS AND HOLLOW CERAMIC MICROSPHERES AND METHODS OF MAKING AND USING THE SAME - An article comprising hollow ceramic microspheres and multi-component fibers is disclosed. The multi-component fibers are adhered together, and the hollow ceramic microspheres are adhered to external surfaces of the multi-component fibers. A method of making the article and use of the article for insulation are also disclosed. | 05-22-2014 |
20150176158 | Sized Short Alumina-Based Inorganic Oxide Fiber, Method of Making, and Composition Including the Same - Sized short alumina-based inorganic oxide fiber comprises, based on the total weight of the sized short alumina-based inorganic oxide fiber: from 0.1 to 15 percent by weight of a size resin comprising a polyamide; and from 85 to 99.9 percent by weight of short alumina-based inorganic oxide fiber. Methods of making the sized short alumina-based inorganic oxide fiber and compositions comprising the sized short alumina-based inorganic oxide fiber in a polymeric matrix are also disclosed. | 06-25-2015 |
20150299506 | COMPOSITION INCLUDING A FLUORINATED POLYMER AND A NON-FLUORINATED POLYMER AND METHODS OF MAKING AND USING THE SAME - A composition is disclosed that includes fluorinated polymer and a non-fluorinated polymer. The fluorinated polymer includes first divalent units independently represented by formula and second divalent unit independently comprising a pendent cationic, anionic, amphoteric, or amine-oxide group or a pendent poly(alkyleneoxy) segment. The non-fluorinated polymer is R | 10-22-2015 |
20150329766 | METHOD OF CONTACTING HYDROCARBON-BEARING FORMATIONS WITH FLUORINATED IONIC POLYMERS - A method is disclosed that includes contacting a hydrocarbon-bearing formation with a treatment composition comprising solvent and a fluorinated polymer. The fluorinated polymer includes: a first divalent unit represented by formula (I): wherein Rf represents a fluoroalkyl group having from 1 to 8 carbon atoms; each R | 11-19-2015 |