Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Wethersfield, CT ranks #1,157 worldwide for total patents filed in 2020, with 132 patents from 42 inventors. Leading employers of inventors based in Wethersfield, CT include RTX (Raytheon), Hamilton Sundstrand, Carrier. That works out to 4.8 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–42 of 42 inventors

Rank Inventor Primary Company Patents
1 Steven D. Porter RTX (Raytheon) 20
2 Eli Cole Warren RTX (Raytheon) 15
3 Leo J. Veilleux, Jr. Hamilton Sundstrand 10
3 Mark A. Stephens RTX (Raytheon) 10
#5 Michael J. Birnkrant Carrier 8
#6 Sean Nolan RTX (Raytheon) 7
#7 Armando Amador RTX (Raytheon) 6
#8 Peter J. Walsh Duro-Test 4
#8 Henry H. Thayer RTX (Raytheon) 4
#10 George Scott Copeland Otis Elevator 3
#10 Joel H. Wagner RTX (Raytheon) 3
#12 Russell B. Witlicki RTX (Raytheon) 2
#12 Michael O'Keefe Premier Manufacturing Group 2
#12 Larry Hines Sirrus 2
#12 Ziyou Xiong RTX (Raytheon) 2
#12 Thomas Gietzold Carrier 2
#12 Wieslaw A. Chlus RTX (Raytheon) 2
#12 Michael J. Linden Combustion Engineering 2
#12 Arindam Guha Accenture Global Solutions Limited 2
#12 Yuk-Kwan Brian Yuen RTX (Raytheon) 2
#12 Denise Hallisey Merit Medical Systems 2
#12 Shelton O. Duelm RTX (Raytheon) 2
#23 Christopher J. Hertel RTX (Raytheon) 1
#23 Christopher S. Griffin 1
#23 John Wysmuller Sealed Air Corporation (Us) 1
#23 Christopher T. Bergman RTX (Raytheon) 1
#23 Bradley T. Duelm RTX (Raytheon) 1
#23 Robert Frederick Murphy GE 1
#23 Michael G. Polo 1
#23 James T. Ayers Great Lakes Chemical 1
#23 Sheryl Brothers Otis Elevator 1
#23 David J. Kuethman Hartford Fire Insurance 1
#23 Joseph Zacchio RTX (Raytheon) 1
#23 Jeffrey Ernst Hamilton Sundstrand 1
#23 Craig M. Beers Hamilton Sundstrand 1
#23 Scott L. Peterson RTX (Raytheon) 1
#23 Michael Gingrave Hartford Fire Insurance 1
#23 Paul R. Langdon The Travelers Indemnity 1
#23 Gopal R. Krishnan Otis Elevator 1
#23 Barry C. Schlein RTX (Raytheon) 1
#23 Peter E. Gardow Hamilton Sundstrand 1
#23 Bryan DesRoches Henkel Ip & Holding Gmbh 1

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