Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Guelph, CA ranks #1,156 worldwide for total patents filed in 2021, with 124 patents from 79 inventors. Leading employers of inventors based in Guelph, CA include Monsanto Technology, RTX (Raytheon), Enterpriseweb.

Showing 1–50 of 79 inventors

Rank Inventor Primary Company Patents
1 Heinrich S. Wohleser Monsanto Technology 8
2 Paul Stone RTX (Raytheon) 6
3 William J. Malyk Enterpriseweb 5
3 Gareth Davies Baylis Medical Company 5
#5 Sean Huberman Mapsted 4
#5 William Ben Miners Intel 4
#7 Heinz W. Pauls University Health Network 3
#7 Bill Witherspoon Emseal Joint Systems 3
#7 Jim Estill Danby Products Limited 3
#7 Igor Falak Pioneer (Corteva) 3
#7 James MCCRAE The Toronto-Dominion Bank 3
#12 Eng-Hong Lee Ceva Animal Health 2
#12 David Brandow Sap Se 2
#12 Gregory Allan Thomas Hall Danby Products Limited 2
#12 Emma Allen-Vercoe 2
#12 Glen D. AITKEN Liftwerx Holdings 2
#12 Chitral Angammana 2
#12 Graham Allan ANDERSON The Toronto-Dominion Bank 2
#12 Paul Cross Ubisoft Entertainment 2
#12 John H. Barber GE 2
#21 Tim Sommerfeld Research In Motion Limited 1
#21 Ferdinand Thoonen Pioneer (Corteva) 1
#21 Parwaiz Amery Danby Products Limited 1
#21 Mario Artur Monteiro US Air Force 1
#21 Anna Deboer 1
#21 Robert Dunn-Dufault Thermo Crs 1
#21 Ron Mercer Symbol Technologies 1
#21 Erjon Begaj Hatillari Danby Products Limited 1
#21 Christopher Court Microsoft 1
#21 Oleg Golubitsky Google 1
#21 Scott Grasley HP 1
#21 Grant Scholes Geosyntec Consultants 1
#21 Pratik SHAH Aegis Therapeutics 1
#21 Dorin Bejan University Of Guelph 1
#21 Alexander K. Koch Geotab 1
#21 Mikhail Alexand Zakharov Cognitive Systems 1
#21 Colin Campbell Stmicroelectronics (Research & Development) Limited 1
#21 Hai Yu 1
#21 Srdjan Majkic Research In Motion Limited 1
#21 Scott Shayko 1
#21 Jason Stoter Vivere 1
#21 Jason Cornelius Wiseman Rockwell Automation 1
#21 Craig A. Dunk Research In Motion Limited 1
#21 Yvan Geoffrey Rodrigues Clearpath Robotics 1
#21 Dennis O'Brien Danby Products Limited 1
#21 Michael L. Bedrosian 1
#21 Ross Wilson Flexible Products 1
#21 Kyla Cochrane 1
#21 Mukund Shukla University Of Guelph 1
#21 Kimberly-Anne Larmond 1