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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Guelph, CA ranks #1,149 worldwide for total patents filed in 2017, with 118 patents from 70 inventors. Leading employers of inventors based in Guelph, CA include Monsanto Technology, Emseal Joint Systems, University Health Network.

Showing 1–50 of 70 inventors

Rank Inventor Primary Company Patents
1 Heinrich S. Wohleser Monsanto Technology 13
2 Bill Witherspoon Emseal Joint Systems 5
2 Heinz W. Pauls University Health Network 5
#4 William Ben Miners Intel 4
#4 Igor Falak Pioneer (Corteva) 4
#6 Craig A. Dunk Research In Motion Limited 3
#6 John H. Barber GE 3
#6 Alejandro Marangoni Solazyme 3
#6 Paul Stone RTX (Raytheon) 3
#10 Michael Sarchese Trojan Technologies 2
#10 Byram Bridle Turnstone Limited Partnership 2
#10 Kevin Porter Blue Coat Systems 2
#10 Jason Stoter Vivere 2
#10 Sean Huberman Mapsted 2
#10 Tristan Zimmermann Excelsior 2
#10 Gareth Davies Baylis Medical Company 2
#10 Amar K. Mohanty Michigan State University 2
#10 Ferdinand Thoonen Pioneer (Corteva) 2
#10 David G. Charne Pioneer (Corteva) 2
#10 Gregory Allan Thomas Hall Danby Products Limited 2
#10 Timothy Ryan Salter Blackberry Limited 2
#10 Larry Henan Chen Kyphon Sàrl 2
#10 Chitral Angammana 2
#24 John Robert Dutcher 1
#24 Ian Glenn Towe Glegg Water Conditioning, Incorporated 1
#24 Arturo RODRIGUEZ-URIBE University Of Guelph 1
#24 Choi-Fong Cho London Health Sciences Centre Research 1
#24 Erzsebet PAPP-SZABO 1
#24 Scott Gammon Blackberry Limited 1
#24 Gil Hadar Magna Powertrain 1
#24 Jeremy Erb Netsweeper (Barbados) 1
#24 Wael Hasan Ahmed KFUPM 1
#24 Stephen Coe Blackberry Limited 1
#24 John R. Barta University Of Arkansas 1
#24 Ronald Dutton RTX (Raytheon) 1
#24 Michael David McLaren 1
#24 Marina Mekhail Blackberry Limited 1
#24 Shauna Gamble Danby Products Limited 1
#24 Todd Jason Hughes Toyota 1
#24 Monica Mezezi Genx International 1
#24 Susan Tammy teWinkel Blackberry Limited 1
#24 John H. Oskam Univation Technologies 1
#24 Kin Keung So Print-Rite ⋅ Unicorn Image Products Co., Ltd. Of Zhuhai 1
#24 Alexander David Black Primal Fusion 1
#24 Amiya Mishra Cives 1
#24 William J. Malyk Enterpriseweb 1
#24 Ronald G. Mercer Certicom 1
#24 Ankit Patras Trojan Technologies 1
#24 Trisevgeni Trissa Kantzas Trojan Technologies 1
#24 Colin Campbell Stmicroelectronics (Research & Development) Limited 1