Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hamilton, MA ranks #3,694 worldwide for total patents filed all time, with 795 patents from 124 inventors. Leading employers of inventors based in Hamilton, MA include Kla-Tencor, Varian Semiconductor Equipment Associates, Kortec.

Showing 1–50 of 124 inventors

Rank Inventor Primary Company Patents
1 Mehran Nasser-Ghodsi Kla-Tencor 44
2 Neil J. Bassom Varian Semiconductor Equipment Associates 43
3 Paul M. Swenson Kortec 38
3 Aaron Burke Emd Millipore 38
#5 Shengwu Chang Varian Semiconductor Equipment Associates 34
#6 Simon Ruffell Varian Semiconductor Equipment Associates 29
#6 John J. Donovan Kd Secure 29
#8 Robert W. King 22
#9 William R. Lawson Qinetiq North America 20
#10 Dennis C. Mackey Rockwell Automation 19
#10 John Kroeker Eliza 19
#12 Herbert Haack Cell Signaling Technology 18
#13 Joseph A. Maher Federal Signal 17
#14 Ming-Qun Xu New England Biolabs 16
#14 John J. Kirby Porter Sewing Machines 16
#16 Rebecca Kucera New England Biolabs 15
#16 Alice Chang Bragel International 15
#18 Joseph D. Crowell Global Life Sciences Solutions Usa 14
#19 Russell M. Dempsey GE 13
#19 Charles Coles Advanced Analogic Technologies Incorporated 13
#21 David Edwards GE 12
#22 Bernd Rosenfeldt Siemens Aktiengesellschaft 11
#22 Jack Benner New England Biolabs 11
#24 John F. Martin Usm Holding Ag 10
#24 Phil Bussone Smith & Nephew 10
#26 Robert P. Bonazoli Gte Products 9
#26 Edward D. Parent Gte Products 9
#28 Luo Sun New England Biolabs 8
#28 Lana Saleh New England Biolabs 8
#30 Donald F. Herdeg Usm Holding Ag 7
#30 George O. Zimmerman Boston University 7
#32 Ernest A. Dale Gte Products 6
#32 Thomas W. Studwell IBM 6
#32 Donald G. Gartzke Dynawave 6
#32 Hang-Gyeong Chin New England Biolabs 6
#32 Mark Lambert Autodesk 6
#37 Eric John Flachbart The General Hospital 5
#37 Mark Douglas Gledhill GE 5
#37 Richard James Conrad 5
#37 Richard Hussey 5
#37 John P. Bowen Eastman Kodak 5
#37 Kurt Decker-Lucke Varian Semiconductor Equipment Associates 5
#37 William T. Kurth Northern Power Systems 5
#37 Charles Brunault Osram Sylvania 5
#37 Semaan Fersan Varian Semiconductor Equipment Associates 5
#46 Michael W. Pippins Brooks Automation Gmbh 4
#46 Steve Elliott Spectra-Physics Laserplane 4
#46 Jean A. McLean Usm Holding Ag 4
#46 Allan Brockenbrough Comverse 4
#46 Randall Rydbeck GE 4

Part of Massachusetts