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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Gravenhurst, CA ranks #16,044 worldwide for total patents filed all time, with 95 patents from 20 inventors. Leading employers of inventors based in Gravenhurst, CA include Dura Global Technologies, Norwood Industries, RTX (Raytheon).

Showing 1–20 of 20 inventors

Rank Inventor Primary Company Patents
1 Pascal Garrido Dura Global Technologies 32
2 Peter Dale Norwood Industries 13
3 Gregory D. Collins Dura Global Technologies 10
#4 Joseph Daniel Maxim Cirtwill RTX (Raytheon) 7
#5 Raymond Pierce Tromar 6
#6 Daniel Rolfe Dew Engineering And Development Ulc 4
#6 Ray H. Pierce Tromar 4
#8 Frank Allan Hamer 2
#8 Bob Curry 2
#8 Elton Townsend Geotech Airborne Limited 2
#8 Norman J. Zaseybida 2
#8 Jeffrey R. Rabjohn 2
#8 Dragomir Smoljo 2
#14 Rachel L. Clark The Toronto-Dominion Bank 1
#14 Donald Ilton 1
#14 Alex Tilley 1
#14 Edward A. Beaumont 1
#14 Ryan Hader 1
#14 Silas Kevin Isaac Graham Governing Council Of The University Of Toronto 1
#14 Jan V. Slama 1