Top Inventors for class "Geometrical instruments" |
Rank | Inventor's name | Country | City/State | Last publication | # of patent apps in this class |
1 | Clark H. Briggs | US | Deland, FL | Jul 24, 2014 / 20140202016 - COORDINATE MEASUREMENT MACHINE WITH DISTANCE METER USED TO ESTABLISH FRAME OF REFERENCE | 17 |
2 | Bing-Jun Zhang | CN | Shenzhen City | Feb 13, 2014 / 20140041246 - TEST DEVICE FOR TESTING DEPTH OF CHAMFER | 16 |
3 | Paul Ferrari | US | Carlsbad, CA | May 12, 2016 / 20160131469 - ULTRA-PORTABLE ARTICULATED ARM COORDINATE MEASUREMENT MACHINE | 15 |
4 | Shuji Hayashida | JP | Kawasaki-Shi | Apr 17, 2014 / 20140102192 - DUST-PROOF STRUCTURE FOR MEASURING TOOL | 11 |
5 | John Delneo | US | Middletown, CT | Mar 03, 2016 / 20160061573 - TAPE RULE ASSEMBLY WITH A FLEXIBLE COVER AT OPENING IN HOUSING | 11 |
6 | Bing-Jun Zhang | CN | Shenzhen | Mar 03, 2016 / 20160061578 - MEASURING DEVICE | 10 |
7 | Michael S. Steele | US | Waukesha, WI | Apr 07, 2016 / 20160096396 - CHALK LINE DEVICE | 10 |
8 | John Christianson | US | Waukesha, WI | Aug 18, 2022 / 20220260370 - Level Including Removable End Caps | 9 |
9 | Robert E. Bridges | US | Kennett Square, PA | Jul 13, 2017 / 20170199025 - LENGTH ARTIFACT AND METHOD OF MEASUREMENT | 9 |
10 | Wade F. Burch | US | Wauwatosa, WI | Jun 07, 2018 / 20180160266 - WIRELESS TRACKING OF POWER TOOLS AND RELATED DEVICES | 8 |
11 | John C. Murray | US | Canton, CT | Mar 17, 2016 / 20160075010 - TOOLBOX | 8 |
12 | Jason Huang | TW | Taipei | Nov 14, 2013 / 20130298417 - STRUCTURAL IMPROVEMENT OF HOOK PIECE OF A MEASURING TAPE DEVICE | 8 |
13 | Bo Pettersson | GB | London | Oct 22, 2015 / 20150301160 - LASER SCANNER | 8 |
14 | Geoffrey Mcfarland | GB | Wotton-Under-Edge | Dec 20, 2012 / 20120323345 - MEASUREMENT METHOD AND APPARATUS | 7 |
15 | Jay Engstrom | US | Port Wing, WI | Apr 07, 2016 / 20160095419 - EQUIPMENT CARRIER WITH A TENSIONED TETHER THAT RETAINS EQUIPMENT IN AN EQUIPMENT HOLDER | 7 |
16 | Marc M. Barber | US | Deltona, FL | Feb 16, 2017 / 20170045348 - PORTABLE COORDINATE MEASUREMENT MACHINE HAVING A HANDLE THAT INCLUDES ELECTRONICS | 7 |
17 | Larry Pulkrabek | US | Osceola, IA | Dec 30, 2021 / 20210404779 - High Impact Strength Lighted Nock Assembly | 7 |
18 | Shozaburo Tsuji | JP | Kawasaki-Shi | Oct 24, 2013 / 20130276319 - MICROMETER | 6 |
19 | Kaoru Kumagai | JP | Tokyo-To | Jul 21, 2022 / 20220229182 - Surveying Instrument | 6 |
20 | Jun-Ichi Kodaira | JP | Tokyo-To | Jun 09, 2016 / 20160161253 - Tilt Detecting Device | 6 |
21 | Steven W. Hyma | US | Milwaukee, WI | Aug 18, 2022 / 20220258323 - Tool Storage | 6 |
22 | Mark L. Silberberg | US | Fallbrook, CA | Apr 21, 2016 / 20160109234 - Plumber's Level | 6 |
23 | Nicholas John Weston | GB | Peebles | May 19, 2016 / 20160136730 - ADDITIVE MANUFACTURING APPARATUS AND METHOD | 6 |
24 | Hogar Tait | US | Carlsbad, CA | Oct 13, 2016 / 20160298949 - CMM WITH MODULAR FUNCTIONALITY | 6 |
25 | Homer L. Eaton | US | Carlsbad, CA | Apr 04, 2013 / 20130081294 - Laser beam delivery in a spatial measuring device | 6 |
26 | Yu Gong | US | Oviedo, FL | Dec 10, 2015 / 20150355310 - METROLOGY INSTRUMENT SYSTEM AND METHOD OF OPERATING | 6 |
27 | Brent Bailey | US | Winter Springs, FL | Aug 15, 2013 / 20130205606 - COORDINATE MEASURING MACHINES WITH DUAL LAYER ARM | 6 |
28 | Benjamin Vullioud | CH | Gollion | Apr 16, 2015 / 20150101205 - SENSOR ELEMENT FOR A MEASURING MACHINE, IN PARTICULAR A COORDINATE MEASURING MACHINE | 6 |
29 | Gabriel Kallabis | DE | Spirkelbach | Oct 07, 2021 / 20210310805 - SPIRIT LEVEL | 5 |
30 | Qing Liu | CN | Shenzhen | Jul 01, 2021 / 20210197396 - METHOD FOR MEASURING POSE OF ROBOTIC END TOOL | 5 |
31 | Abhijeet A. Khangar | US | Waukesha, WI | Apr 07, 2016 / 20160096396 - CHALK LINE DEVICE | 5 |
32 | James Spaulding | US | Bristol, CT | Jun 26, 2014 / 20140173908 - UTILITY KNIFE WITH BLADE WIPER | 5 |
33 | Aaron Pellett | US | Alborn, MN | Apr 07, 2016 / 20160095419 - EQUIPMENT CARRIER WITH A TENSIONED TETHER THAT RETAINS EQUIPMENT IN AN EQUIPMENT HOLDER | 5 |
34 | Roger D. Neitzell | US | Palmyra, WI | Jul 28, 2022 / 20220234177 - TOOL BIT | 5 |
35 | Alberto Tarizzo | IT | Torino | Aug 15, 2013 / 20130205607 - MEASURING MACHINE PROVIDED WITH A BLOCK OF CONCRETE HAVING THE FUNCTION OF FOUNDATION OR MACHINE BED, AND METHOD FOR COMPENSATING THE MEASURING ERRORS DUE TO DEFORMATIONS OF THE BLOCK | 5 |
36 | Pascal Jordil | CH | Ecoteaux | Jan 26, 2017 / 20170023383 - ABSOLUTE POSITION DETERMINATION | 5 |
37 | James S. Allemand | US | Mokena, IL | Nov 03, 2011 / 20110265339 - LIGHTED LEVEL TOOL | 5 |
38 | David Roberts Mcmurtry | GB | Dursley | Nov 14, 2013 / 20130304250 - ANALOGUE MEASUREMENT PROBE FOR A MACHINE TOOL APPARATUS | 5 |
39 | Simon Raab | US | Santa Barbara, CA | Jan 14, 2021 / 20210008663 - LASER MARKING SYSTEM AND METHOD FOR LASER MARKING A WORKPIECE | 5 |
40 | Carlo Dall'Aglio | IT | Castello D'Argile | Aug 15, 2013 / 20130205608 - TOUCH PROBE WITH PIEZOELECTRIC SENSOR AND THERMAL INSULATION | 5 |
41 | David Eugene Hahn | US | Elberfeld, IN | Mar 19, 2015 / 20150075016 - AUTOMATIC PIN ADJUSTMENT INDICATOR FOR ARCHERY SIGHTS | 5 |
42 | Thomas Engel | DE | Aalen | Dec 09, 2021 / 20210379823 - Method and System for Producing a Workpiece Using Additive Manufacturing Techniques | 5 |
43 | Paul C. Atwell | US | Lake Mary, FL | Mar 19, 2020 / 20200088505 - ARTICULATED ARM COORDINATE MEASURING MACHINES WITH ACTIVE COUNTERBALANCE | 5 |
44 | Robert Mayor | US | Half Moon Bay, CA | Nov 17, 2016 / 20160337807 - UTILIZING MOBILE WIRELESS ACCESS GATEWAYS FOR LOCATION AND CONTEXT PURPOSES | 4 |
45 | Scott R. Fischer | US | Menomonee Falls, WI | Apr 16, 2020 / 20200120404 - POWER TOOL AND METHOD FOR WIRELESS COMMUNICATION | 4 |
46 | Dong-Hun Kang | KR | Busan | Dec 23, 2021 / 20210396505 - MEASURING TAPE WITH FINGER STOP | 4 |
47 | Michael T Lueck | US | Sunnyvale, CA | Mar 31, 2016 / 20160091310 - MULTI-FUNCTION LEVEL WITH A JOINABLE END | 4 |
48 | James N. Hayes | US | Urbana, OH | Mar 31, 2022 / 20220099440 - POINT LAYOUT SYSTEM USING SINGLE LASER TRANSMITTER | 4 |
49 | Jun-Qi Li | CN | Shenzhen | Apr 16, 2020 / 20200115268 - APPARATUS FOR PRODUCTION OF CURVED GLASS AND METHOD FOR MANUFACTURING SAME | 4 |
50 | Nobuyuki Nishita | JP | Tokyo-To | Apr 14, 2016 / 20160102977 - Surveying Instrument | 4 |
51 | Kunihiro Hayashi | JP | Itabashi-Ku | Mar 31, 2016 / 20160091297 - OPERATING DEVICE, OPERATING METHOD, AND PROGRAM THEREFOR | 4 |
52 | Christopher J. Murray | US | Baltimore, MD | Oct 04, 2012 / 20120246950 - TOOL ASSEMBLY | 4 |
53 | Richard S. Schubert | US | Vashon Island, WA | Dec 29, 2016 / 20160377428 - LEVELING AND POSITIONING SYSTEM AND METHOD | 4 |
54 | Albert Sanchez | US | Naugatuck, CT | Jan 09, 2014 / 20140007444 - BLADE AND HOOK ASSEMBLY FOR TAPE RULE | 4 |
55 | Barry Douglas Wixey | US | Sanibel, FL | Mar 03, 2016 / 20160061576 - Two Plane Protractor and Display Device | 4 |
56 | Jeffrey Alan Wassmer | US | Evansville, IN | Mar 19, 2015 / 20150075016 - AUTOMATIC PIN ADJUSTMENT INDICATOR FOR ARCHERY SIGHTS | 4 |
57 | Parin Patel | US | San Francisco, CA | Jan 13, 2022 / 20220015201 - Accessory Strobe Interface | 4 |
58 | Kevyn Barry Jonas | GB | Bristol | Mar 15, 2012 / 20120060385 - Apparatus and method of measuring workpieces | 4 |
59 | Charles D. Kim | US | Raleigh, NC | Jul 04, 2013 / 20130167388 - Box Level | 4 |
60 | Oleksiy P. Sergyeyenko | CA | Ottawa | Oct 04, 2012 / 20120246950 - TOOL ASSEMBLY | 4 |
61 | Sadayuki Matsumiya | JP | Kawasaki-Shi | Aug 28, 2014 / 20140237834 - FORM MEASURING INSTRUMENT | 4 |
62 | Michael Nahum | US | Kirkland, WA | May 26, 2016 / 20160146636 - ABSOLUTE ENCODER SCALE CONFIGURATION WITH UNIQUE CODED IMPEDANCE MODULATIONS | 4 |
63 | David W. Swanson | US | Fallbrook, CA | Jun 02, 2011 / 20110131008 - POSITIONING DEVICE WITH EXTENSIBLE CORD AND METHOD | 4 |
64 | Mark Nepil | US | St. Charles, IL | Jun 22, 2017 / 20170173997 - CHALK LINE APPARATUS | 4 |
65 | Stephen Paul Hunter | GB | Bristol | Aug 25, 2022 / 20220267097 - LOADING APPARATUS | 4 |
66 | William Robert Swanson | US | Fallbrook, CA | Jun 02, 2011 / 20110131008 - POSITIONING DEVICE WITH EXTENSIBLE CORD AND METHOD | 4 |
67 | Dongmei Hong | US | San Diego, CA | Jun 04, 2015 / 20150153146 - ARTICULATED ARM | 4 |
68 | David A. Jackson | US | Point Roberts, WA | Dec 16, 2021 / 20210387637 - APPARATUS AND METHOD FOR CALIBRATING AND ALIGNING AUTOMOTIVE SENSORS | 4 |
69 | Joyce Popendorf | US | North Logan, UT | Aug 08, 2013 / 20130199050 - SUNDIAL | 4 |
70 | Matthew Haas | US | Duluth, MN | Aug 11, 2022 / 20220252373 - BOWSTRING RELEASE | 4 |
71 | Laurent Desforges | FR | Ambloy | Dec 27, 2018 / 20180372469 - SYSTEMS AND METHODS FOR CONTROL AND CALIBRATION OF A CMM | 4 |
72 | Hyman Jack Kipnes | US | Hauppauge, NY | Feb 09, 2012 / 20120030957 - ERGONOMIC VERNIER CALIPER BASE | 3 |
73 | Clyde Torp | US | Naperville, IL | Dec 11, 2008 / 20080301961 - Chalk line apparatus and method of operating a chalk line apparatus | 3 |
74 | Brandon Miller | US | Milwaukee, WI | Jun 19, 2014 / 20140166516 - TOOL STORAGE DEVICES | 3 |
75 | Ryoji Shibata | JP | Toyokawa-Shi | Dec 25, 2014 / 20140373368 - EYEGLASS FRAME SHAPE MEASURING APPARATUS | 3 |
76 | Nobuyuki Hayashi | JP | Kawasaki-Shi | Mar 07, 2013 / 20130055579 - MEASURING INSTRUMENT | 3 |
77 | Chris Towns | GB | Taunton | Mar 10, 2016 / 20160069660 - APPARATUS FOR MEASURING AN ARTICLE | 3 |
78 | Guenter Grupp | DE | Boehmenkirch | Jun 07, 2018 / 20180159448 - METHOD AND DEVICE FOR CHECKING AN ELECTRICAL VALUE OF AN ELECTRIC MACHINE | 3 |
79 | Tim Prestidge | GB | Bath | Jun 20, 2013 / 20130159714 - MEASUREMENT PROBE SYSTEMS FOR CO-ORDINATE POSITIONING APPARATUS | 3 |
80 | Riccardo Cipriani | IT | Ferrara | Dec 27, 2012 / 20120324747 - METHOD FOR CHECKING THE DIAMETER OF A CYLINDRICAL PART IN ORBITAL MOTION | 3 |
81 | Vincent Cook | US | Milford, CT | Dec 31, 2020 / 20200408499 - Ergonomic Tape Measure | 3 |
82 | Brian J. Adams | US | Vincennes, IN | Mar 12, 2015 / 20150068051 - AUTOMATIC PIN ADJUSTMENT FOR ARCHERY SIGHTS | 3 |
83 | Takayasu Yamamoto | JP | Toyokawa-Shi | Mar 06, 2014 / 20140059871 - EYEGLASS FRAME SHAPE MEASURING APPARATUS | 3 |
84 | Daniel E. Andrews | US | Charlottesville, VA | Aug 29, 2013 / 20130219729 - HOLDING MECHANISM FOR USE WITH AN OPHTHALMIC TRACER, AND METHOD | 3 |
85 | Paul Ricalde | US | Mandeville, LA | May 19, 2016 / 20160138900 - TAPE MEASURE APPARATUS WITH A ROTATING AND SLIDING CATCH | 3 |
86 | Roger A. Bohman | US | Franklin, WI | Jan 13, 2011 / 20110005092 - HANDS-FREE LEVEL | 3 |
87 | Edward Joseph Khoury | AU | Bateman | Nov 04, 2021 / 20210339155 - Ride On Toy | 3 |
88 | Tatsuki Nakayama | JP | Hiroshima | Mar 24, 2016 / 20160084631 - ROUNDNESS MEASUREMENT DEVICE AND CONTROL METHOD | 3 |
89 | Hideki Shindo | JP | Hiroshima | Apr 07, 2016 / 20160097635 - SHAPE MEASURING APPARATUS AND POINT SENSOR POSITIONING UNIT | 3 |
90 | Ulrich Rattunde | DE | Bentwisch | Oct 13, 2016 / 20160297078 - TWIN GRIPPER | 3 |
91 | Timothy Albrecht | US | Menomonee Falls, WI | Oct 17, 2013 / 20130269196 - LEVEL | 3 |
92 | Robert William Tait | US | Niskayuna, NY | Apr 09, 2015 / 20150096184 - METHOD AND APPARATUS FOR MEASURING THICKNESS OF AN OBJECT | 3 |
93 | Milwaukee Electric Tool Corporation | US | Brookfield, WI | Aug 08, 2013 / 20130199810 - ROTARY HAMMER | 3 |
94 | Andreas Winter | AT | Feldkirch | Jan 03, 2019 / 20190004619 - System and Method for Measuring Position and Orientation of a Rigid Body | 3 |
95 | Elie Shammas | US | San Diego, CA | Jun 04, 2015 / 20150153146 - ARTICULATED ARM | 3 |
96 | Michele Verdi | IT | Rivoli | Aug 15, 2013 / 20130205607 - MEASURING MACHINE PROVIDED WITH A BLOCK OF CONCRETE HAVING THE FUNCTION OF FOUNDATION OR MACHINE BED, AND METHOD FOR COMPENSATING THE MEASURING ERRORS DUE TO DEFORMATIONS OF THE BLOCK | 3 |
97 | Peter Wirth | DE | Eching | Aug 01, 2013 / 20130192079 - TENSION ELEMENT POSITION SENSOR | 3 |
98 | David W. Gerding | US | Barboursville, VA | Aug 29, 2013 / 20130219729 - HOLDING MECHANISM FOR USE WITH AN OPHTHALMIC TRACER, AND METHOD | 3 |
99 | Brian K. Gray | US | Conway, AR | Sep 12, 2019 / 20190279396 - VEHICLE WHEEL ALIGNMENT METHODS AND SYSTEMS | 3 |
100 | Cheng Zhang Li | US | Colgate, WI | Mar 07, 2013 / 20130055507 - SCREWDRIVER INCLUDING A CONDUIT REAMER | 3 |