Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Kingston, CA ranks #1,091 worldwide for total patents filed all time, with 3,107 patents from 799 inventors. Leading employers of inventors based in Kingston, CA include Queen'S University At Kingston, Chevron, Analytics For Life.

Showing 1–50 of 799 inventors

Rank Inventor Primary Company Patents
1 Yan-Fei Liu Queen'S University At Kingston 101
2 Robert A. Innes Chevron 58
3 Shyamlal Ramchandani Analytics For Life 36
#4 P. Martin Petkovich Opko Ireland Global Holdings 33
#5 Michael F. Cunningham Xerox 29
#6 Guojun Liu Queen'S University At Kingston 27
#7 Timothy J. N. Smith Octane Biotech 26
#7 Prasad S. Apte Praxair Technology 26
#9 Timothy J. Clark Xerox 25
#9 Aron Rosenfeld Alcan International Limited 25
#9 Rui Resendes Lanxess 25
#12 Iljoon Jin Alcan International Limited 24
#12 Jeremy P. W. Heaton Queen'S University At Kingston 24
#14 James M. Fraser Baker Hughes Holdings 23
#15 John Hugh Kerr Ker-Train Holdings 22
#16 Ian Grant Pioneer (Corteva) 21
#17 Matej Goc Evolution Optiks Limited 20
#17 David N. Mitchell Out Of Line Sports 20
#17 Vaclav G. Zboril Dupont Canada 20
#17 Gabor Fichtinger The Johns Hopkins University 20
#21 Olivo G. Sivilotti Alcan International Limited 19
#21 Peng Fang AMD 19
#21 Walter Szarek Queen'S University At Kingston 19
#24 Glenville Jones Bone Care International 17
#24 Nicholas Charles Parson Rio Tinto Alcan International Limited 17
#24 Shangzhi Pan Sparq Systems 17
#27 R. Stephen Brown Queen'S University At Kingston 16
#27 Pierre Henri Marois Alcan International Limited 16
#27 Martin Petkovich Cytochroma 16
#30 David Graham Nairn Analog Devices 15
#30 Benjamin Andrew Smillie E.I. Du Pont De Nemours And 15
#30 Ernest W. Dewing Alcan International Limited 15
#30 George W. Vosper 15
#30 Stephen Davies AT&T 15
#35 Philip G. Jessop Queen'S University At Kingston 14
#35 Shailesh Ratilal Doshi E.I. Du Pont De Nemours And 14
#35 Mohsen Najafi Yazdi Analytics For Life 14
#38 Robert Kisilevsky Queen'S University At Kingston 13
#38 Saul Wolfe Queen'S University At Kingston 13
#38 Dennis F. Dong H-D Tech 13
#38 Frances J. R. Richmond Advanced Bionics Ag 13
#38 Konrad Woronowicz Bombardier Transportation Gmbh 13
#38 Melville D. Ball Alcan International Limited 13
#38 Jean-Paul Huni Alcan International Limited 13
#45 Roland S. Timsit Alcan International Limited 12
#45 Jeffrey K. S. Wan Queen'S University At Kingston 12
#45 Andrew Craig Smithkline Beeacham P.L.C. 12
#45 James C. Grant Grant Dental Technology 12
#45 Alan Keith Breck Liqui-Box 12
#45 Simon William Barker Novelis 12