Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Barrie, CA ranks #2,694 worldwide for total patents filed all time, with 1,147 patents from 289 inventors. Leading employers of inventors based in Barrie, CA include Towerstar Pets, Dh Technologies Development Pte., The Toronto-Dominion Bank.

Showing 1–50 of 289 inventors

Rank Inventor Primary Company Patents
1 Steve A. Copeland Towerstar Pets 89
2 Stephen A. Tate Dh Technologies Development Pte. 48
3 Gregory Albert Kliewer The Toronto-Dominion Bank 39
#4 Robert William Thorstensen-Woll Selig Sealing Products 34
#5 James Mantyla Canplas Industries 30
#5 Craig Busch Busch Systems International 30
#5 Elias Mancebo Royal Group 30
#8 Mitchell Thompson Towerstar Pets 21
#9 Robert A. Greene Jacobs & Thompson 19
#9 William R. Moore Honda Motor Co. 19
#9 Bradley E. Watson Magna International 19
#12 Jeff Jones Hello Direct 18
#13 Hugh D. Downey Dura Global Technologies 16
#13 Marek Frankowski Litens Automotive Partnership 16
#15 Daniel J. MacNeil Ryko Canada 15
#15 Jacek Stepniak Litens Automotive Partnership 15
#15 Scott Baldwin Canplas Industries 15
#18 Robert Roy Stephenson Stephenson Technologies 12
#18 Erin Dawn Dobo Grit 12
#20 Paul Adams Stephenson Technologies 10
#20 Jube Leonard Magna Closures 10
#20 Maurice Lavimodiere Southmedic Incorporated 10
#20 John B. Page Ursatech 10
#20 Dilshan Thilina Modaragamage Wearatec 10
#20 Ian Edward Tooke Rockwell Automation 10
#20 Bradford D. Armstrong Magna International 10
#27 William McFadden Motorola 9
#27 Vadym Podkopayev Magna Closures 9
#27 Xiaoxiong Luo Ursatech 9
#27 BRIEN TODD SIROLA Shore Acres Enterprises 9
#27 Adam Smith Mars, Incorporated 9
#27 Bartholomew John Boelryk Stephenson Technologies 9
#33 Donald Brien Sirola Shore Acres Enterprises 8
#33 Mark Rejman Nova Chemicals (International) S.A. 8
#33 David Chotenovsky Crh Medical 8
#36 Steve Jarjoura Ventra Group 7
#36 Richard O'Donnell 7
#36 Chris Adams Edison Nation 7
#36 Zac Cutt Innovative Automation 7
#36 CHRISTOPHER PAUL BERNI Shore Acres Enterprises 7
#41 James McKee Canplas Industries 6
#41 Scott A. Baker Elkem Metals Company 6
#41 Michael Lalonde Innovative Automation 6
#41 Fred H. Muxlow Magna International 6
#41 Zachary T. Cox Charles River Analytics 6
#46 Donald J. Denis RTX (Raytheon) 5
#46 Christopher J. Hopkins Ballogy 5
#46 Cameron A. Mitchell Hogtunes 5
#46 Steven Miller Flsmidth A/S 5
#46 Daniel Doig 5