Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Bristol, CT ranks #1,960 worldwide for total patents filed all time, with 1,653 patents from 363 inventors. Leading employers of inventors based in Bristol, CT include Pfizer, RTX (Raytheon), Otis Elevator. That works out to 27.2 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 363 inventors

Rank Inventor Primary Company Patents
1 Harry Howard Pfizer 64
2 Joseph R. Martone 52
3 Andrzej Ernest Kuczek RTX (Raytheon) 49
#4 James A. Rivera Otis Elevator 48
#5 Richard E. Kulak Otis Elevator 43
#6 Vincent T. Kozyrski The Fletcher-Terry Company 38
#6 Gregory Trude Graham Packaging Company 38
#8 Anthony Calderoni Covidien Lp 36
#8 Javier Larranaga GE 36
#10 Steven A. Avritch Hamilton Sundstrand 32
#11 Frederick H. Barker Otis Elevator 25
#12 James Spaulding General Motors 24
#12 Walter P. Waskiewicz The Torrington 24
#14 Guy A. Daigle Weatherford/Lamb 22
#15 Robb Janak Jacobs Vehicle Systems 20
#15 Thomas Hennessy Lori 20
#15 Lee Drozdenko RTX (Raytheon) 20
#18 Neelakantan Balasubramanian Bristol-Myers Squibb 19
#18 Jeffrey R. Edgerly Thule Sweden Ab 19
#18 Thomas R. Russo The Wiremold 19
#21 Edward K. Welch, II Loctite 18
#22 Robert Casale Massachusetts Mutual Life Insurance 15
#23 Joseph B. Kelaita, Jr. GE 14
#24 John A. Morby GE 13
#25 Joseph P. DeCarolis 12
#26 James Bugryn Carling Technologies 11
#26 Dennis James Rehmer Abb Schweiz Ag 11
#26 Jason Edward Harmon GE 11
#29 Jon P. McCuin GE 10
#29 Howard Velasco Franklin Products 10
#29 Michael P. Levandoski Henkel Limited 10
#29 Kanwalpreet Reen Hamilton Sundstrand 10
#29 George Fox Timex 10
#29 Wilfred R. Rogers The Wiremold 10
#29 James P. Detweiler Thule Sweden Ab 10
#29 Wayne Zadrick Ecoservices 10
#37 David E. Reisner U.S. Nanocorp 9
#37 Kevin L. Maurice Inertia Dynamics 9
#37 Peter Senak, Jr. Dana Limited 9
#37 W. Scott Samsel United States Surgical 9
#37 Jay Phoenix Roller Bearing Company Of America 9
#37 Justin Dubrosky Abb Schweiz Ag 9
#37 Bryant L. Lishness Colt'S Manufacturing Company 9
#44 Damon J. Lenk Corbin Russwin 8
#44 Richard Varsell RTX (Raytheon) 8
#44 Jocelyn C. Michaud Smiths Medical Asd 8
#44 Augustus Fletcher American Chemical & Refining Company 8
#44 Adam O'Day Sargent Manufacturing 8
#44 Thomas A. Stoklasek University Of Connecticut 8
#44 J. Peter McCuin GE 8

Part of Connecticut