Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hamilton, CA ranks #953 worldwide for total patents filed all time, with 3,505 patents from 942 inventors. Leading employers of inventors based in Hamilton, CA include Xerox, Research In Motion Limited, Blackberry Limited.

Showing 1–50 of 942 inventors

Rank Inventor Primary Company Patents
1 Cuong Vong Xerox 109
2 Vytautas Robertas Kezys Research In Motion Limited 60
3 H. Bruce Goodbrand 53
#4 Mohammed Nawaf Smadi Blackberry Limited 48
#5 Liberatore A. Trombetta 2266170 Ontario 47
#5 Richard Teltz Z124 47
#7 Mihaela Maria Birau Xerox 46
#8 Brian Reeves Z124 41
#9 Peter J. Edmonson Research In Motion Limited 39
#10 Gamini Weeratunga Apotex Pharmachem 33
#11 Michael A. Martin Dana Canada 32
#11 Hao Yang Toyota 32
#13 Tomasz Bis National Steel Car Limited 31
#14 Zhenchun Shi Op-Hygiene Ip Gmbh 30
#15 Thomas Arthur Walli Geotab 29
#16 John Unsworth Titan Medical 28
#17 Timothy A. Fox Siemens Energy 27
#18 Robert Bradley Gill Diebold 26
#19 David Zhou Alfa Scientific Designs 25
#20 Adrian R. M. Upton Neuropace 24
#21 Mailvaganam Mahendran Zenon Environmental 23
#22 Terence Douglas Todd Mcmaster University 22
#22 Melanie Lynn Davis Xerox 22
#24 David Langlois Össur Hf 21
#25 Heather Chi-Ying Lam Canadian Tire Corporation, Limited 20
#25 David R. Kurceba Xerox 20
#25 Frank L. Graham Advec 20
#25 Ahmad Mohammad Mohammad Kholaif Blackberry Limited 20
#29 Peter Gross Illinois Tool Works 19
#29 Eric J. Alexander Hamilton Sundstrand 19
#29 Michael G. Roche Emc Ip Holding Company 19
#32 Seokwon Lee Samsung 18
#32 Glen Crossley E Ink Holdings 18
#32 Uwe Schaible Titan Medical 18
#32 Peter T. Weber Accipiter Radar Technologies 18
#32 Christine D. Anderson Xerox 18
#32 Graham Hills Sita Information Networking Computing Canada 18
#38 David Reeves Z124 17
#38 Paul G. Andrus Battelle Memorial Institute 17
#40 Richard D. Clark Custom Industrial Automation 16
#40 David Ronald Foxcroft Fox 40 International 16
#42 Alicja M. Mika Natrix Separations 15
#42 Dennis Allen Darby The Procter & Gamble 15
#42 Carlos Filipe Natrix Separations 15
#42 Valery Ten Mold-Masters (2007) Limited 15
#42 Mohammed Al-Kaabi National Steel Car Limited 15
#47 Elena N. Komkova Natrix Separations 14
#47 Jack Hirsh Hamilton Civic Hospital Research Development 14
#47 Jeffrey I. Weitz Hamilton Civic Hospital Research Development 14
#50 Silvio Tonellato Dana Canada 13