Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JW

John R. Williams — 76 Patents

STScroll Technologies: 48 patents #4 of 60Top 7%
AUAuburn University: 8 patents #20 of 580Top 4%
ASAmerican Standard: 4 patents #121 of 558Top 25%
ACAlliance Compressors: 3 patents #2 of 11Top 20%
BIBristol Compressors International: 3 patents #6 of 19Top 35%
VUVanderbilt University: 3 patents #275 of 1,609Top 20%
BCBristol Compressors: 3 patents #21 of 61Top 35%
RJRutgers, The State University Of New Jersey: 2 patents #371 of 1,498Top 25%
GE: 1 patents #19,940 of 36,430Top 55%
CRCree: 1 patents #444 of 639Top 70%
DTDanfoss Scroll Technologies: 1 patents #14 of 23Top 65%
Freeport, ME: #1 of 37 inventorsTop 3%
Maine: #14 of 4,281 inventorsTop 1%
Overall (All Time): #24,882 of 4,157,543Top 1%
76 Patents All Time
John R. Williams has been granted 76 US patents while listed as an inventor at Scroll Technologies. The first was granted in 1992 and the most recent in November 2025. John R. Williams ranks #24,882 of 4,157,543 US inventors in our database (top 0.60%). Patent records list John R. Williams in Freeport, ME, US.

Issued Patents All Time

Showing 1–25 of 76 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12476361 Flexible phased array antenna systems and methods Ted R. Dabrowski, Adam Jara, Katherine W. Kwan 2025-11-18
12440991 Ultra wideband location determination with predicative and power saving capabilities Michael Francis Mitchell, Fei Cai, Farahnaz Sisco 2025-10-14
12311150 Method and apparatus for controlled relative motion of surgical instruments and components Frederick A. Haer 2025-05-27
11071829 Method and apparatus for controlled relative motion of surgical instruments and components Frederick A. Haer 2021-07-27
9984894 Forming SiC MOSFETs with high channel mobility by treating the oxide interface with cesium ions Sarit Dhar, Sei-Hyung Ryu, Anant Agarwal 2018-05-29 $9,744,000
9362367 Semiconductor devices including polar insulation layer capped by non-polar insulation layer Ayayi C. Ahyi, Tamara Isaacs-Smith, Yogesh Sharma, Leonard C. Feldman 2016-06-07
9255642 Aerodynamic seals for rotary machine Rahul Anil Bidkar, Massimiliano Cirri, Azam Mihir Thatte 2016-02-09 $27,679,000
9117817 Semiconductor devices including polar insulation layer capped by non-polar insulation layer Ayayi C. Ahyi, Tamara Isaacs-Smith, Yogesh Sharma, Leonard C. Feldman 2015-08-25
8904814 System and method for detecting a fault condition in a compressor John W. Tolbert, Jr., Bruce Moody, Jerry D. Edwards, David Gilliam, Eugene Chumley +5 more 2014-12-09
8672642 System and method for starting a compressor John W. Tolbert, Jr., Bruce Moody, Eugene Chumley, Richard C. Denzau, Jerry D. Edwards +5 more 2014-03-18
8337183 Oil return valve for a scroll compressor Tracy L. Milliff, Thomas R. Barlto, Edward A. Tomayko, Joe T. Hill, Carlos Zamudio +3 more 2012-12-25
7992399 Pressure equalization component for a compressor David Monk, Richard C. Denzau, Scott Hix, Timothy Wampler, Bruce Moody 2011-08-09
7727340 Inclusion of nitrogen at the silicon dioxide-silicon carbide interface for passivation of interface defects Gilyong Chung, Chin-Che Tin, Kyle McDonald, Massimiliano De Ventra, Robert A. Weller +2 more 2010-06-01
7235438 Inclusion of nitrogen at the silicon dioxide-silicon carbide interface for passivation of interface defects Gilyong Chung, Chin-Che Tin, Kyle McDonald, Massimiliano Di Ventra, Robert A. Weller +2 more 2007-06-26
7214627 Graded junction termination extensions for electronic devices J. Neil Merrett, Tamara Isaacs-Smith, David C. Sheridan 2007-05-08
7083397 Scroll compressor with motor control for capacity modulation Joseph F. Loprete, Gene Fields, Joe T. Hill 2006-08-01
7033950 Graded junction termination extensions for electronic devices J. Neil Merrett, Tamara Isaacs-Smith, David C. Sheridan 2006-04-25
6966759 Compressor diagnostic and recording system Greg Hahn, Zili Sun, Carlos Zamudio, Jason Hugenroth, Thomas R. Barito +2 more 2005-11-22
6964558 Compressor utilizing low volt power tapped from high volt power Greg Hahn, Zili Sun, Carlos Zamudio, Jason Hugenroth, Thomas R. Barito +2 more 2005-11-15
6939756 Inclusion of nitrogen at the silicon dioxide-silicon carbide interace for passivation of interface defects Gilyong Chung, Chin-Che Tin, Kyle McDonald, Massimiliano Di Ventra, Robert A. Weller +2 more 2005-09-06
6722861 Scroll compressor with motor control for capacity modulation Joseph F. Loprete, Gene Fields, Joe T. Hill 2004-04-20
6682327 Method of aligning scroll compressor components Tracy L. Milliff 2004-01-27
6682323 Simplified stamped counterweight Tracy L. Milliff 2004-01-27
6641368 Compressor utilizing low volt power tapped from high volt power Greg Hahn, Zili Sun, Carlos Zamudio, Jason Hugenroth, Thomas R. Barito +2 more 2003-11-04
6641379 Load bearing ribs for fixed scroll Todd W. Dewar, Tracy L. Milliff 2003-11-04