Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Renfrew, CA ranks #12,706 worldwide for total patents filed all time, with 138 patents from 33 inventors. Leading employers of inventors based in Renfrew, CA include Quest Software, Pyrogenesis, Prontoforms.

Showing 1–33 of 33 inventors

Rank Inventor Primary Company Patents
1 Michel Albert Brisebois Quest Software 42
2 Peter G. Tsantrizos Pyrogenesis 13
2 Brian P. Doyle 13
#4 Mitch A. Brisebois Prontoforms 12
#5 William Teron 6
#6 Marie-Renee Blanchet Université Laval 5
#7 Christopher Spurrell Igt Canada Solutions Ulc 4
#7 Hugh A. Edwards Allied Consulting 4
#9 Bahadir Kulunk Timminco Limited 3
#9 Francois X. Grimard Fuel Tech 3
#9 John Runciman Terray 3
#12 Rosana Bianchini Nyacol Products 2
#12 Dwight E. Spencer IBM 2
#12 Nadia Guerin Supratek Pharma 2
#12 Robert John Runciman Terray 2
#12 Angkoon Phinyomark Picomole 2
#12 Floyd I. Clelland Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Energy, Mines And Resources Canada 2
#12 John P. MacMillan Timminco Limited 2
#12 Martin J. Bray Timminco Limited 2
#20 Adam J. Chubey Ford 1
#20 Olivier Jacques Alexandre Radar Blackberry Limited 1
#20 William A. Reitz Badische 1
#20 Zhenhong Cheng Skywave Mobile Communications 1
#20 Gaetan Boutin, deceased 1
#20 Roland LeBlanc 1
#20 Stephen G. Hibbins Timminco Limited 1
#20 Ian F. Clelland Of Natural Resources Canada 1
#20 by Claire Trudeau, administratrix Seneca Sawmill 1
#20 Trevor C. Sawler 1
#20 Frank Townsend Zimmer 1
#20 Yannick Dansereau-Daoust Ciena 1
#20 Jacques Sicotte 1
#20 John Terence Drost 1