Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Wilton, CT ranks #1,627 worldwide for total patents filed all time, with 2,046 patents from 353 inventors. Leading employers of inventors based in Wilton, CT include IBM, Protegrity, Cannondale.

Showing 1–50 of 353 inventors

Rank Inventor Primary Company Patents
1 Chandrasekhar Narayanaswami IBM 112
2 David A. Ferrucci IBM 97
3 Yigal Rozenberg Protegrity 65
#4 Raphael Schlanger Cannondale 59
#5 Daniel N. Galburt Asml Holding N.V. 52
#6 Rocco J. Noschese Burndy 41
#7 Sanjay K. Jindal Walker Digital 39
#8 Wing-Kwong Keung 38
#9 William R. Gardner Qualcomm 37
#10 Bhavani Raghuraman Schlumberger Technology 35
#11 Tammo Uitterdijk Asml Netherlands B.V. 33
#12 Rafael Paolo Squitieri Turncare 32
#13 Alan S. Rothenberg Cytec Technology 31
#13 David R. Auerbach Pitney Bowes 31
#15 Richard P. Schoonmaker Pitney Bowes 28
#16 Herbert W. Korthoff United States Surgical 27
#17 T. Scott Case Priceline.Com 26
#18 Michael O'Neill Perkinelmer 25
#18 Sungwon Moh Pitney Bowes 25
#20 David H. Brooks, Jr. Pitney Bowes 24
#20 Eugene L. Flanagan, III The Nielsen Company (Us) 24
#22 Duncan W. Brown Advanced Technology & Materials Co. 23
#23 David H. Harkness The Nielsen Company (Us) 22
#24 Joseph H. Lyons Asml Holding N.V. 21
#25 Sherman K. Poultney Asml Holding N.V. 20
#25 Werner J. Blank American Cyanamid 20
#27 Thomas Basil Smith, III IBM 19
#28 Albert Ballard Andrews Schlumberger Technology 16
#28 Jan Berman Mechoshade Systems 16
#30 Daniel Toffolo Lear Automotive Dearborn 15
#30 Derek Geiger Sikorsky Aircraft 15
#32 James W. Crimmins K And M Electronics 14
#32 James William Cooper IBM 14
#32 W. Dale Hollingsworth Targus International 14
#32 Thomas C. Kienzle, III Beru Aktiengesellschaft 14
#36 Harry E. Luperti Pitney Bowes 13
#36 Mohamed Swillam Asml Holding N.V. 13
#36 Henry J. Walter Clairol Incorporated 13
#39 Charles M. Baffo ExxonMobil 12
#39 Ernest M. Bevilacqua Discovision Associates 12
#41 W. Dwain Simpson Saber Equipment 11
#41 Sayee Natarajan Purdue Pharma 11
#41 Paul R. Yoder, Jr. Taunton Technologies 11
#41 Werner J. Blank 11
#45 Tord Per Jens Onnerud Cadenza Innovation 10
#45 Michael L. Cappola BOE 10
#45 Hans C. Mol Pitney Bowes 10
#45 Valery B. Zemelman General Foods Limited 10
#45 David R. Winn Nanosciences 10
#50 Farouk Abi-Karam King Industries 9

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