Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Dundas, CA ranks #9,632 worldwide for total patents filed all time, with 211 patents from 21 inventors. Leading employers of inventors based in Dundas, CA include Ford, Natrix Separations, Liburdi Engineering Limited.

Showing 1–21 of 21 inventors

Rank Inventor Primary Company Patents
1 Spencer Robert Hoernke Ford 63
2 Ronald F. Childs Natrix Separations 17
3 Joseph Liburdi Liburdi Engineering Limited 15
#4 John D. Brennan Mcmaster University 14
#5 Thomas C. Waram Baylis Medical Company 12
#5 Andrew Peter Knights Mcmaster University 12
#7 Ronesh Puri Blackberry Limited 9
#7 Marc R. Risdale Illinois Tool Works 9
#9 Edward A. Funger 8
#10 Ian Pottinger Zenon Environmental 7
#10 Herbert Wallace Campbell Canadian Patents And Development Limited 7
#12 Fernando A. Tonelli Zenon Environmental 6
#13 Carl Roy Bachellier 5
#13 Alexander Neil Birkett Nortel Networks Limited 5
#15 Nicholas Burke Mcmaster University 4
#15 Walter Otto Repple 4
#17 Brian J. Underdown Aventis Pasteur 3
#17 Parth Jain Myant 3
#17 Mark W. Eady Rockwell Automation 3
#17 Matthew James Astill Holmes Outotec Oyj 3
#21 Alex Lee Fiber Optic Systems Technology 2