Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Oshawa, CA ranks #4,008 worldwide for total patents filed all time, with 713 patents from 264 inventors. Leading employers of inventors based in Oshawa, CA include Fantom Technologies, Monsanto Technology, IBM.

Showing 1–50 of 264 inventors

Rank Inventor Primary Company Patents
1 Helmut Gerhard Conrad Fantom Technologies 52
2 James F. Mitchell Monsanto Technology 24
3 Vladimir Klicnik IBM 18
#4 Reginald C. Grills Flextronics Automotive 17
#5 William A. Harris Honeywell 14
#5 N. Chris Chaggares Visualsonics 14
#5 Andrew Richard Henry Phillips Ti Properties 14
#8 John W. Stephenson IBM 13
#9 Chris Wisniewski General Motors 12
#9 Kevan Anderson Innovere Medical 12
#11 Michael Field Oxford Superconducting Technology 11
#12 Steffen P Lindenthal General Motors 10
#12 Kenn W. Heinrich Cisco 10
#14 Randy Lee Safran Landing Systems Canada 8
#14 Cameron Manners Nu Flow Technologies 2000 8
#14 Jennifer Long Hasbro 8
#14 Shaikh Shahriar Quader IBM 8
#18 Martin Juhas General Motors 7
#18 Richard James Seabright Open Text 7
#20 Edgar R. Wunsche Empco (Canada) 6
#20 Jinoj Titus The Toronto-Dominion Bank 6
#20 Dhruv Patel General Motors 6
#20 Michael J. Chappell General Motors 6
#20 Tomasz Piotrowski Canadian Tire Corporation, Limited 6
#20 Daniel K. Cook Gallery Specialty Hardware 6
#20 David C. Cochrane General Motors 6
#20 Amal Karboubi Ciena 6
#20 Richard A. Kupnicki 6
#29 Chris Chaggares Unknown 5
#29 Karl H. Kozole General Motors 5
#29 Timothy Teatro Unknown 5
#29 Desmond Hawley Unknown 5
#29 William Bird Subsea 7 Norway As 5
#29 Julius Drew 5
#29 Hakem Habib Bce 5
#29 Abdulaziz Mohammed Almehmadi University Of Tabuk 5
#29 James Andrew Glover Intabio 5
#29 Matt Clements Rakuten Kobo 5
#39 Dan Grebenisan The Toronto-Dominion Bank 4
#39 James S. Young IBM 4
#39 Mark Gregory Cowtan IBM 4
#39 John Hancock Tata Motors Limited 4
#39 Guy Chouinard 4
#39 Calin Zamfirescu University Of Ontario Institute Of Technology 4
#39 Linxuan Yang General Motors 4
#39 Michael Boilard 4
#39 John B. Gerow Itt 4
#39 Scott Tripp The Firestone Tire & Rubber 4
#39 Rafael Menezes Oliveira Halliburton Energy Services 4
#39 Syed Reza Rizvi University of California 4