Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Wethersfield, CT ranks #2,073 worldwide for total patents filed all time, with 1,544 patents from 240 inventors. Leading employers of inventors based in Wethersfield, CT include Hamilton Sundstrand, Carrier, Duro-Test. That works out to 56.6 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 240 inventors

Rank Inventor Primary Company Patents
1 Craig M. Beers Hamilton Sundstrand 111
2 Leo J. Veilleux, Jr. Hamilton Sundstrand 90
3 Michael J. Birnkrant Carrier 78
#4 Peter J. Walsh Duro-Test 67
#5 Steven D. Porter RTX (Raytheon) 66
#6 Ziyou Xiong RTX (Raytheon) 48
#7 Eli Cole Warren RTX (Raytheon) 46
#8 Joel H. Wagner RTX (Raytheon) 38
#8 Mark A. Stephens RTX (Raytheon) 38
#10 Joseph Zacchio RTX (Raytheon) 32
#11 Shawn J. Gregg RTX (Raytheon) 28
#11 Russell B. Witlicki RTX (Raytheon) 28
#13 Gregory DiVincenzo Hamilton Sundstrand 26
#14 Michael O'Keefe Premier Manufacturing Group 24
#15 Christopher J. Hertel RTX (Raytheon) 22
#15 Armando Amador RTX (Raytheon) 22
#17 Wieslaw A. Chlus RTX (Raytheon) 19
#17 Shelton O. Duelm RTX (Raytheon) 19
#17 Gopal R. Krishnan Otis Elevator 19
#20 Yuk-Kwan Brian Yuen RTX (Raytheon) 18
#20 Henry H. Thayer RTX (Raytheon) 18
#20 Richard A. Hart RTX (Raytheon) 18
#23 John E. Kulesza 16
#24 Brendan M. Lenz RTX (Raytheon) 15
#24 George Scott Copeland Otis Elevator 15
#24 Jeffrey Ernst Hamilton Sundstrand 15
#24 Michael Gingrave Hartford Fire Insurance 15
#28 Christopher R. Joe RTX (Raytheon) 14
#28 Sean Nolan RTX (Raytheon) 14
#30 Sheryl Brothers Otis Elevator 13
#31 William C. Lamberti RTX (Raytheon) 12
#32 Douglas D. Schumann, Jr. Hartford Fire Insurance 11
#32 Jeffrey J. Lienau RTX (Raytheon) 11
#34 Scott A. Liljenberg Carrier 10
#34 Donald W. Fleischer Veeder Industries 10
#34 Thomas Gietzold Carrier 10
#37 Frederick E. Jackson Strain Measurement Devices 9
#37 Edward J. Temple 9
#37 Raymond J. Archacki, Jr. Carrier 9
#40 JoAnn DeMarco Henkel Limited 8
#40 Deborah A. Copes Bank of America 8
#40 Roy N. Guile RTX (Raytheon) 8
#40 Catherine Burgess Curagen 8
#40 Robert F. Kasprow RTX (Raytheon) 8
#40 Kelly M. Harrington RTX (Raytheon) 8
#40 Nimish Gandhi Stormtech 8
#40 Aaron Engel Deringer-Ney 8
#48 Robert D. Klapatch Hamilton Sundstrand 7
#48 Michael J. Linden Combustion Engineering 7
#48 Jon Hulse Sargent Manufacturing 7

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