Class / Patent application number | Description | Number of patent applications / Date published |
436060000 | LUBRICANT, GREASE, MINERAL OIL, HYDROCARBON OIL PRODUCT, OR FATS OR LIPIDS FOR OXIDATION (E.G., BREAKDOWN PRODUCTS OR CONTAMINATION, ETC.) | 24 |
20080199962 | Qualitative Assay of Extra-Virgin Olive Oils - A methodology that enables introduction of an innovative assay for evaluating the extra-virgin olive oil (EOO), based upon the quantification of the main components of the saponifiable and non-saponifiable fractions of EOOs and upon its total antioxidizing power. | 08-21-2008 |
20080206878 | Method of Analyzing Basestocks For Low Temperature Properties - A process for producing lube basestocks involving solvent dewaxing a waxy feed to produce at least a partially dewaxed lube oil boiling range stream and then hydrodewaxing the partially dewaxed lube oil boiling range stream to produce a lube basestock. | 08-28-2008 |
20080206879 | Analysis of Functional Fluids Using a Redox Indicator - The present invention relates to the analysis of the quality of functional fluids. In particular, the invention relates to using a stable redox indicator that produces a color at the presence of oxidation byproducts in a functional fluid. | 08-28-2008 |
20090029475 | METHOD FOR DETERMINING THE CONTENT OF DIESEL FUEL IN A LUBRICATING OIL OF A COMBUSTION ENGINE - A method for determining proportion of diesel fuel in a lubricating oil of a combustion engine, including: forming a mixture containing an oil sample and a C | 01-29-2009 |
20090117659 | Process for Evaluating Quality of Coke and Bitumen of Refinery Feedstocks - This invention relates to processes for the evaluation of the coke and/or bitumen quality of a plurality of refinery feedstocks using high throughput experimentation. | 05-07-2009 |
20100120158 | METHOD FOR ANALYZING PETROLEUM-BASED FUELS AND ENGINE OILS FOR BIODIESEL CONTAMINATION - A method for detecting contamination of a conventional petroleum-based fuel used in an internal combustion engine is provided. A sample of engine oil is separated into a polar component and a non-polar component by a polar solvent. The polar component is analyzed for one or more biodiesel chemical components selected from the group consisting of plant sterols, fatty acid methyl esters, cetane, and combinations thereof, which relate to a degree of engine oil contamination. The polar and non-polar component may be analyzed by Gas Chromatography and Mass Spectrometry (GC/MS) and optionally Flame Ionization Detection (FID) for the one or more biodiesel chemical components, which can provide a semi-quantitative level of such biodiesel chemical components. Fuel samples can also be analyzed for biodiesel contamination species via GC/MS. | 05-13-2010 |
20110020940 | Marker Dyes for Petroleum Products - The present invention relates to using a marker in a functional fluid, which survives the use of the functional fluid in an application, with a reagent solution to identify the functional fluid rapidly either before, during or after the functional fluid's use and which is a suitable method for identifying a functional fluid in the field, and which may employ the use of test wipe, or medium, that contains the reagent solution. | 01-27-2011 |
20130115704 | SYSTEM AND METHOD FOR THE ANALYSIS OF BIODIESEL - Methods and devices are disclosed providing techniques for measuring the amount of biodiesel in a fuel sample. The methods may be used in the field without the use of laboratory equipment. The biodiesel in the sample is converted to the corresponding free acid which can be isolated and quantified to provide information regarding the amount of biodiesel in the original sample. | 05-09-2013 |
20130210155 | Methods For Selection Of A Naphthenate Solids Inhibitor And Test Kit, And Method For Precipitating Naphthenate Solids - The present invention relates to a method for identifying an inhibitor to the formation of naphthenate solids in a liquid hydrocarbon including contacting a sample of the liquid hydrocarbon with an inhibitor and a buffered aqueous solution, observing the extent of formation of naphthenate solids, if any, the extent of formation of naphthenate solids being indicative of the effectiveness of the inhibitor, and repeating the steps, if necessary, until a suitable inhibitor is identified. The present invention also relates to a method for identifying an inhibitor to the formation of naphthenate scale in a liquid hydrocarbon system as well as test kits for use in the methods. | 08-15-2013 |
20130230926 | SYSTEM AND METHOD FOR TESTING ENGINE LUBRICANTS - Systems and methods for testing an engine lubricant are provided. The system includes a heated block having at least one cavity therein, at least one test cylinder receiving the engine lubricant therein, and at least one heated test piston selectively disposable into the engine lubricant of the test cylinder whereby deposits are formable on the test piston. The test cylinder is positionable in the cavity of the heated block and heatable thereby. Taxi oils and/or gases may be added to facilitate testing. | 09-05-2013 |
20140004611 | METHOD FOR DETERMINING THE CONTENT OF HYDROGEN SULFIDE IN CRUDE AND RESIDUAL OILS | 01-02-2014 |
20140147923 | METHODS AND DEVICES FOR TESTING WATER - Methods and systems for testing fluid samples include a diffused air flotation (DAF) system and a jar. The jar includes a diffuser for injecting the diffused air into the jar and a tap for drawing a fluid out of the jar. | 05-29-2014 |
20140329328 | Transformer Hydrogen Indicator - A reliable, low cost device for determining when dangerous levels of hydrogen gas have been generated in a transformer is disclosed. The hydrogen indicator is defined by a module assembly that threads into either the headspace or into the oil-filled body of a transformer. The module has an open interior that contains a film that incorporates a hydrogen-sensitive chemochromic indicator. The indicator film is visible through a lens. When the film has been exposed to hydrogen, chemical changes in the chemochromic indicator cause the film to change color—the color change is immediately visible through the lens. | 11-06-2014 |
20140349406 | Solvent Extraction Using Environmentally-Friendly Siloxane Solvents - Solvent extraction to quantify contamination of a sample by a hydrocarbon contaminant is performed by providing a defined quantity of the sample, providing a defined quantity of a siloxane solvent, mixing the defined quantity of the siloxane solvent and the defined quantity of the sample to extract the hydrocarbon contaminant from the sample to form a contaminant solution with the siloxane solvent, and separating the contaminant solution from the sample. A concentration of the hydrocarbon contaminant in the contaminant solution can be measured by vibrational spectroscopy. Siloxane solvents are CFC free, VOC exempt, odorless, colorless, low to moderately flammable, non-toxic, and safe for incidental skin contact. Some are even used in cosmetic products. | 11-27-2014 |
20140363893 | DIAGNOSING METHOD FOR OIL-FILLED ELECTRICAL EQUIPMENT - The present invention is a diagnosing method for oil-filled electrical equipment for diagnosing a degree of risk with regard to occurrence of abnormality due to copper sulfide generation in oil-filled electrical equipment, and the method includes a first step of detecting specific compounds contained in insulating oil in said oil-filled electrical equipment, a second step of evaluating a possibility of copper sulfide generation at a dangerous part leading to dielectric breakdown in said oil-filled electrical equipment in accordance with a detection result obtained in said first step, and a third step of diagnosing a degree of risk with regard to occurrence of abnormality in said oil-filled electrical equipment in accordance with an evaluation result obtained in said second step. Said specific compounds include dibenzyldisulfide and 2,6-di-t-butyl-p-cresol. | 12-11-2014 |
20160018336 | METHODS AND KITS FOR ANALYZING AUTOMOTIVE FLUIDS - The invention provides kits and methods for assessing an automotive fluid and for determining if or when an automotive fluid should be or is in need of being replaced. The kit contains a test medium that may be a paper separated into two or more distinct, separable sections or compartments containing thereon an effective amount of at least one chemical or substance that effect or facilitate a color change in the presence of one or more substance, metal or impurity such as, for instance, iron, copper, or nickel. The test medium may be arranged in a substantially cubical form and contain multiple layers of test medium. | 01-21-2016 |
20160097757 | AUTOMATED METHOD AND APPARATUS TO CHARACTERIZE SOLUBILITY OF ASPHALTENES OF A HYDROCARBON FLUID SAMPLE UTILIZING MICROFLUIDICS - A method and apparatus for analyzing solubility of asphaltenes of a hydrocarbon fluid sample involves a sequence of operations including: i) performing microfluidic mixing operations that form a mixture that includes the hydrocarbon fluid sample, a solvent that dissolves asphaltenes and a precipitant that precipitates asphaltenes; ii) using microfluidic processes that result in precipitation of asphaltenes from the mixture resulting from i); iii) performing microfluidic filtering operations that remove precipitated asphaltenes resulting from ii) and passes permeate; and iv) performing optical spectroscopy on the permeate resulting from iii). The operations of i)-iv) can be repeated over iterations that vary the amount of solvent relative to the precipitant in the mixture. These iterations can cause varying fractional precipitation of asphaltenes in each given iteration. | 04-07-2016 |
20160131629 | METHOD FOR DETECTING OIL ON TOBACCO PRODUCTS AND PACKAGING - A process for detecting oil or lubricant contamination in a manufactured product, the process comprising adding at least two fluorescent taggants to oils or lubricants contained in processing machinery for said product, irradiating said product, causing at least one of said taggants to fluoresce and detecting radiation emitted by said fluorescing taggant in an oil-contaminated product. | 05-12-2016 |
20160139104 | Fluid Quality Monitoring and Filtration System - A fluid filtration system may include a fluid filter assembly that includes a filter element configured to filter a fluid and a sensor probe incorporated into the fluid filter assembly. The sensor probe may include a chemically reactive material sensitive to at least one property of the fluid and at least a portion of the sensor probe may be exposed to the fluid. | 05-19-2016 |
20160161457 | APPARATUS AND METHOD FOR DETECTING FILTER CONTAMINATION OF FUEL CELL - An apparatus for detecting a filter contamination of a fuel cell includes: a signal transmitter configured to transmit at least one signal; a signal receiver configured to receive the at least one signal from the signal transmitter; and a resistor unit including a silver compound disposed between the signal transmitter and the signal receiver and having a resistance which varies according to a chemical reaction. | 06-09-2016 |
20190145948 | THIN FILM LIQUID THERMAL TESTING | 05-16-2019 |
436061000 | Acidity, basicity or neutralization number | 3 |
20080199963 | Method of Determining Acid Content - A method for determining the TAN value of a hydrocarbon-containing composition, in which the sample is cleared of free water, heated to an elevated temperature in an oxygen free environment, conditioned at the elevated temperature for an extended period of time, cooled down to a temperature near to room temperature, and titrated against alcoholic potassium hydroxide, whereby the TAN value may be calculated. | 08-21-2008 |
20110059532 | MONITORING OF FRYING OIL QUALITY USING COMBINED OPTICAL INTERROGATION METHODS AND DEVICES - Herein are disclosed methods and devices for optically monitoring multiple parameters of an oil sample. In one embodiment, the methods and devices can be used for determining the quality of cooking or flying oil in terms of the free fatty acid content and total polar compound content of the oil. The methods use an optical absorbtive/reflective property in evaluating the free fatty acid content, and use optical fluorescence in evaluating the total polar compound content, with both measurements using a single sampling substrate and a single measuring device. | 03-10-2011 |
20130309773 | PROCESS FOR THE DETERMINATION OF THE TOTAL ACIDITY NUMBER (TAN) OF A MINERAL INSULATING OIL - A method includes pouring in a container a sample of oil and a pre-established amount of a solution suitable for extracting the acid fraction of the sample; stirring the content of the container and waiting for the separation from the sample of an extract phase. A titrant solution of KOH is dosed in the extract phase until an acid-base indicator present therein changes color. The TAN is calculated on the basis of the volume of dosed titrant solution according to the formula: TAN (mg | 11-21-2013 |