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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hampden, MA ranks #8,979 worldwide for total patents filed all time, with 234 patents from 41 inventors. Leading employers of inventors based in Hampden, MA include Flodesign Sonics, Hamilton Sundstrand, RTX (Raytheon).

Showing 1–41 of 41 inventors

Rank Inventor Primary Company Patents
1 Bart Lipkens Flodesign Sonics 87
2 Stephen E. Tongue Hamilton Sundstrand 21
3 Andrew V. Schwendenmann RTX (Raytheon) 17
#4 Michael A. Nallen Thermatool 15
#5 Steve Mahaffey Lisco 13
#6 Steven V. Haldeman Soliton 9
#7 Edward F. Lamoureux Combustion Engineering 8
#8 Kenneth E. Lefebvre Titeflex 5
#8 Harvey Smith Zf Automotive Uk Limited 5
#10 Michael J. Germain University Of Massachusetts 4
#11 Peter DellaValle Phoenix Environmental 3
#11 Jay Ray Kewaunee Scientific 3
#11 Tyler F. Young 3
#11 Allison B. Thomas Hamilton Sundstrand 3
#15 Marcus J. Gottsche Stanadyne 2
#15 Zachary Coopee Western New England University 2
#15 Michael Paschetto Protedyne 2
#15 Warren Black 2
#15 Christopher John Killoy Savage Arms 2
#15 Gregory M. Nadvit 2
#15 Donald Kostanski Unknown 2
#15 Robert E. Gurney RTX (Raytheon) 2
#15 James H. Nugent Coleco Industries 2
#15 James R. Condon 2
#15 David J. Avery Hamilton Sundstrand 2
#26 Gordon A. Phelps 1
#26 Mark D. Buddington Titeflex 1
#26 Bob O'Brien 1
#26 Barry Kessler RTX (Raytheon) 1
#26 Michael R. Goss 1
#26 Philip R. Giroux 1
#26 Bart Lipkiens Flodesign Sonics 1
#26 Ralph E. Disa RTX (Raytheon) 1
#26 Matthew John Smith MIT 1
#26 Donald J. Garden, Sr. 1
#26 Jeffrey J. DeGray 1
#26 Charlotte Richmond 1
#26 Daniel Rumplik Nord-Micro Elektronik Feinmechanik 1
#26 Frank Dinoia 1
#26 Joseph R. Echlin Marvin Glass & Associates 1
#26 Donald P. Nardi Bayer Healthcare 1

Part of Massachusetts