Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Canton, CT ranks #4,015 worldwide for total patents filed all time, with 712 patents from 118 inventors. Leading employers of inventors based in Canton, CT include International Flavors & Fragrances, Jacobs Vehicle Systems, Otis Elevator.

Showing 1–50 of 118 inventors

Rank Inventor Primary Company Patents
1 Philip T. Klemarczyk International Flavors & Fragrances 83
2 Justin D. BALTRUCKI Jacobs Vehicle Systems 48
3 Bruce A. Powell Otis Elevator 39
#4 John C. Murray 32
#5 Timothy S. Bowman The Wiremold 31
#6 Kent Reid Veeder-Root 29
#7 Bryan P. deBlois Black & Decker 28
#8 Mark Fuller Alstom Technology 18
#8 Matthew E. Lynch RTX (Raytheon) 18
#10 Richard Dolson Gilbarco 17
#10 Richard D. Sawyer International Fuel Cells 17
#12 George C. Rannenberg RTX (Raytheon) 15
#13 Glenn Gradischer Hamilton Sundstrand 13
#14 Brian R. Fournier Sargent Manufacturing 12
#14 Jay S. Tourigny Zynon Technologies 12
#14 William E. Villano Hamilton Sundstrand 12
#17 Mark I. Jurras, III The Torrington 11
#17 Joseph A. Tocco Connectquest 11
#19 Peter Bizzarro Hamilton Sundstrand 8
#19 Peter Keyo Otis Elevator 8
#19 Joseph L. Lehman Ascom Hasler Mailing Systems 8
#19 Daniel Rush Otis Elevator 8
#23 Ernest F. Guignon Ciencia 7
#23 Javier V. Weatherford Acme United 7
#23 John Eschenbrenner Otis Elevator 7
#23 James G. Richard Commonwealth Of Australia 7
#23 Raymond MacQueen Gerber Scientific Products 7
#23 Mark A. Sapia Combustion Engineering 7
#29 Charles Whitney The Wiremold 6
#29 Lauren C. Berry The Travelers Indemnity 6
#29 Edward Marchitto RTX (Raytheon) 6
#29 Robert Hans Schlinker RTX (Raytheon) 6
#29 Logan H. Do RTX (Raytheon) 6
#29 Wayne R. Spock RTX (Raytheon) 6
#35 Steven P. Wincze Combustion Engineering 5
#35 Michael R. Gammon The Travelers Indemnity 5
#35 Edward C. Caputo Hartford Fire Insurance 5
#35 Isaac D. Adams Hartford Fire Insurance 5
#35 John Joseph Black, Jr. Conair 5
#35 David G. Engelhardt Readydock 5
#41 Drew Charles Bartkiewicz 4
#41 Timothy Andrew Gallagher 4
#41 Michael W. Barnstead Apple 4
#44 Philp T. Klemarczyk Henkel Limited 3
#44 Robert H. Sand 3
#44 Thomas E. Landry Otis Elevator 3
#44 Anthony Sendek The Ensign-Bickford 3
#44 Dane Alfred Bartkiewicz 3
#44 William A. Saimond Readydock 3
#44 Robert Bryan Leach Otis Elevator 3

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