Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Suffield, CT ranks #3,262 worldwide for total patents filed all time, with 925 patents from 132 inventors. Leading employers of inventors based in Suffield, CT include Massachusetts Mutual Life Insurance, Control Module, Bloom Energy.

Showing 1–50 of 132 inventors

Rank Inventor Primary Company Patents
1 Jiby John Massachusetts Mutual Life Insurance 89
2 James S. Bianco Control Module 75
3 James F. McElroy Bloom Energy 74
#4 Thomas M. Zywiak Hamilton Sundstrand 62
#5 Evan Butcher RTX (Raytheon) 53
#6 Mark A. Zaffetti Hamilton Sundstrand 43
#7 Gerald P. Dyer Hamilton Sundstrand 40
#7 Francis Parnin RTX (Raytheon) 40
#9 David Selvitelli Covidien Lp 30
#10 Rodney M. LaFollette Bipolar Technologies 16
#11 David R. Danielson Hamilton Sundstrand 15
#12 Raymond N. Quenneville The Jacobs Manufacturing 14
#12 Nandan Ukidwe Soliton 14
#12 Walter E. Bujak, Jr. Carrier 14
#15 Ronald Francis Konopacki GE 13
#15 Ronald J. Parise 13
#17 Richard A. Gorski Emhart Glass Machinery Investments 12
#18 Keith E. Golembiewski Hartford Fire Insurance 11
#19 Rebecca Lynn Tobiasz GE 10
#19 Daniel J. Cashman 10
#21 Paul H. Chase Alstom Technology 9
#21 Richard C. LaFlesh Alstom Technology 9
#23 William Rogers Lear Automotive Dearborn 8
#23 Robert Nutini Unknown 8
#23 John Donahue International Fuel Cells 8
#26 Charles L. DeGeorge Hamilton Sundstrand 7
#26 Thomas G. Corley Hamilton Sundstrand 7
#26 Chris Switalski Eveready Battery Company 7
#29 David J. Podgorski Hamilton Sundstrand 6
#29 James A. Herndon Walbro 6
#29 Durwood M. Beringer Hamilton Sundstrand Space Systems 6
#29 Stephen T. Parkinson Capewell Components Company 6
#29 Frank J. Berte Combustion Engineering 6
#29 George J. Roebelen, Jr. RTX (Raytheon) 6
#35 David Cortelli Seneca Sports 5
#35 Eileen A. Bartley Cts 5
#35 Gregory E. Falvo Westinghouse Electric 5
#35 Stanley R. Wysk Combustion Engineering 5
#39 Lawrence J. Edwards Combustion Engineering 4
#39 Glenn G. Hart, Jr. Westinghouse Electric 4
#39 Andrew M. Kochanek Ensign-Bickford Aerospace & Defense 4
#39 Sid Russell RTX (Raytheon) 4
#39 Anthony Phillips 4
#39 Anthony J. Grosso Hartford Fire Insurance 4
#39 Douglas E. Sansom RTX (Raytheon) 4
#39 Maria Leonard Andrade Hartford Fire Insurance 4
#39 Adam Woods Hamilton Sundstrand 4
#39 Chester A. Siver Conval 4
#39 Joseph Miranda Hamilton Sundstrand 4
#50 Edwin C. Barron Prudential Insurance Company Of America 3

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