Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Brookfield, CT ranks #1,512 worldwide for total patents filed all time, with 2,229 patents from 302 inventors. Leading employers of inventors based in Brookfield, CT include Advanced Technology & Materials Co., Duracell U.S. Operations, BOE.

Showing 1–50 of 302 inventors

Rank Inventor Primary Company Patents
1 Jeffrey F. Roeder Advanced Technology & Materials Co. 100
2 Steven J. Specht Duracell U.S. Operations 87
3 Chris Hugh Senanayake BOE 84
#4 Craig Fellenstein IBM 74
#5 Bijan Harichian Conopco 69
#6 Michael Pozin The Gillette Company 61
#7 Jose I. Arno Advanced Technology & Materials Co. 55
#8 Michael F. Lofaro IBM 50
#9 David M. Lubensky IBM 49
#10 Albert Ronald Perez The Nielsen Company (Us) 43
#11 Edilberto I. Salazar Pitney Bowes 42
#12 Peter S. Kirlin Advanced Technology & Materials Co. 36
#12 Mark MacLeod Covidien Lp 36
#12 Elaine Regina Wedral Google 36
#15 Jose Castillo Deniega I-Flow 35
#16 David J. Goral Smiths Medical Asd 31
#16 Ying Tang Entegris 31
#18 Luping Wang Advanced Technology & Materials Co. 30
#19 Joe Zheng UPS 28
#20 Abraham P. Ittycheriah IBM 27
#20 Joel Rosenberg Rom Technologies 27
#22 Walter Renz Air Products And Chemicals 26
#23 Paul A. Matula United States Surgical 25
#23 Arthur H. DePoi Pitney Bowes 25
#25 David Anglin The Gillette Company 24
#26 Dmitriy Shmagin Stokely-Van Camp 22
#27 Jau Y. Hsu Google 21
#28 David Christian Hanley Bioxcel Therapeutics 20
#28 Gregory Lalier Conopco 20
#30 Nelson E. Malwitz Sealed Air Corporation (Us) 18
#30 Richard Edwards Perkinelmer Health Sciences 18
#32 Ted Deisenroth Ciba Specialty Chemicals 17
#33 Muhammad Sakhi Sarwar Fujitsu Limited 15
#33 Faramarz Azadegan Kabushiki Kaisha Toshiba 15
#33 David Kuiper Entegris 15
#36 Lawrence J. Novacco Fuelcell Energy 14
#36 Steven Lippy Entegris 14
#38 Richard J. Mangini Otis Elevator 13
#38 Jeffrey Willey Medical Instill Technologies 13
#38 Srinath Kasturirangan Medimmune Limited 13
#38 Richard R. Leshik General Foods Limited 13
#42 Stephen Horhota BOE 12
#42 Brett Christopher Domoy Conopco 12
#42 Tao Wu Hologic 12
#42 Torsten H. Lindbom Unimation 12
#46 Richard Carl Zimmerman Asml Holding N.V. 11
#46 Thomas J. Plona Schlumberger Technology 11
#46 Shaoping Wang Fairfield Crystal Technology 11
#46 Paul Hartzband Hartcase 11
#46 Muktesh Paliwal Gte Products 11

Part of Connecticut