Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Waterford, CT ranks #3,440 worldwide for total patents filed all time, with 865 patents from 143 inventors. Leading employers of inventors based in Waterford, CT include Pfizer, Bajer Design & Marketing, Bristol-Myers Squibb. That works out to 281.4 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 143 inventors

Rank Inventor Primary Company Patents
1 Bertrand L. Chenard Pfizer 67
2 Yuhpyng L. Chen Pfizer 49
3 Michael S. Kellogg Bajer Design & Marketing 44
#4 David W. Piotrowski Pfizer 42
#5 Roger B. Ruggeri Pfizer 40
#6 John E. Starrett, Jr. Bristol-Myers Squibb 34
#7 Charles A. Harbert Pfizer 31
#7 Frank J. Urban Pfizer 31
#9 Frank C. Sciavolino Thetis Phamaceuticals 23
#10 Edward A. Glazer Pfizer 19
#11 Mark A. Dombroski Pfizer 18
#12 Benjamin C. Peterson Codex 17
#13 Nicholas Barczak Forma Therapeutics 15
#13 Christopher A. Lipinski Pfizer 15
#15 Xiaojing Yang Pfizer 14
#16 Gerald L. Assard US Air Force 13
#17 G. Clifford Carter US Air Force 12
#17 Derek Tickner Pfizer 12
#17 Constantine Sklavounos Pfizer 12
#17 Vincent J. Puglisi Gates Energy Products 12
#17 Fredric J. Vinick Pfizer 12
#22 Lubomyr Kucher Monsanto Technology 11
#22 Henry Weinberg Adrena 11
#22 George P. Yost 11
#22 Ping CHANG Rhodes Technologies 11
#26 Glenn C. Andrews Pfizer 10
#26 Stephen M. Wood Covectra 10
#26 Daniel I. Radin Harman International Industries, Incorporated 10
#29 Jun Xiao Pfizer 9
#29 Keith Jensen Lts Lohmann Therapie-Systeme Ag 9
#29 Jonathan Rowe Amarin Pharmaceuticals Ireland Limited 9
#29 Harvey N. Seiger Gould 9
#33 Adrian S. Fox Nepera 7
#34 Xi Song Pfizer 6
#34 Brian Patrick Jones Pfizer 6
#36 Renuka Devi Reddy Pfizer 5
#36 Yajing Lian Pfizer 5
#36 Bruce M. Abraham Applied Physical Sciences 5
#36 Kris Nicole Jones Pfizer 5
#40 Jonathan Smith US Air Force 4
#40 Robert M. Spitz 4
#40 Robin Keich Pfizer 4
#40 Paul Titus Crotty Gci Outdoor 4
#40 John B. Cheng Pfizer 4
#40 Diane Johnson Pfizer 4
#40 Robert J. Aiello Pfizer 4
#40 Jeffrey P. Radack Accenture Global Services Limited 4
#40 Rance S. Rust Hubbell Incorporated 4
#49 William C. Tintle Emhart Glass Machinery Investments 3
#49 Mary Am Ende Pfizer 3

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