Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Haddam, CT ranks #7,397 worldwide for total patents filed all time, with 310 patents from 43 inventors. Leading employers of inventors based in Haddam, CT include Pfizer, Whelen Engineering Company, Z-Medica.

Showing 1–43 of 43 inventors

Rank Inventor Primary Company Patents
1 Brian Thomas O'Neill Pfizer 50
2 Jon H. Lyons Whelen Engineering Company 40
3 Giacomo Basadonna Z-Medica 25
#4 Kevin Peese Viiv Healthcare Uk (No.5) Limited 22
#5 Gregory R. Morck Covidien Lp 17
#6 Ronnie E. Thebeau Otis Elevator 16
#6 Donald Smith Enterprises International 16
#8 Adam Miller Advanced Drainage Systems 13
#9 Shari L. Bugaj RTX (Raytheon) 11
#10 Jere E. Meredith Bristol-Myers Squibb 10
#10 Richard T. Thompson Loctite 10
#12 Bruce E. Truax Western Electric Company 8
#13 Jolanta Nowakowski Pfizer 7
#14 Jeffrey M. Whynall Bacou Usa Safety 6
#15 Anthony Cacace Gkn Aerospace Services Structures 5
#16 Jon Wink Covidien Lp 4
#16 Kimberly Pash Boyington RTX (Raytheon) 4
#16 Kyle J. Kelsey The Travelers Indemnity 4
#19 Giacomo Basadonna 3
#19 Terry M. Chriss 3
#19 Brian L. Fresher Hartford Fire Insurance 3
#19 James Mathews Ripley Company 3
#23 Kenneth Soeder 2
#23 Raymond C. Ehlers, Jr. Standard Knapp 2
#23 Matthew Manning RIGGS 2
#23 William J. Pokorney Whelen Engineering Company 2
#23 Paul W. Blodgett 2
#23 Edward E. Mayer Ricoh Company 2
#23 H. Gerard Matthews Teleco Oilfield Services 2
#23 Mark A. Nowakowski Uniroyal Chemical Company 2
#23 Catherine Ragozzino Unknown 2
#32 Mark A. Tuckerman 1
#32 Richard A. MacLennan 1
#32 Gustaf B. Carlson 1
#32 Shari J. Bugaj RTX (Raytheon) 1
#32 Harriet A. Fellows 1
#32 Mark Sizer Unknown 1
#32 Robert J. Makowski, deceased RTX (Raytheon) 1
#32 Michael Klonoski 1
#32 Barbara Rodriguez Spong Pfizer 1
#32 Patrick Neil Gallagher GE 1
#32 Richard N. Crumb Olin 1
#32 Todd A. Kinney 1

Part of Connecticut