Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Bolton, CT ranks #4,845 worldwide for total patents filed all time, with 558 patents from 83 inventors. Leading employers of inventors based in Bolton, CT include RTX (Raytheon), Otis Elevator, Coherent.

Showing 1–50 of 83 inventors

Rank Inventor Primary Company Patents
1 Mark F. Zelesky RTX (Raytheon) 103
2 Paul Sheedy RTX (Raytheon) 82
3 Frank Sansevero Otis Elevator 41
#4 Lanny Laughman Coherent 27
#5 Alan W. Menard Gerber Systems 24
#6 James R. Norris Pitney Bowes 23
#6 Charles M. Hevenor Gerber Scientific Products 23
#8 Michael J. Giering RTX (Raytheon) 20
#9 Lesia V. Protsailo Audi Ag 18
#10 Richard S. Tuthill RTX (Raytheon) 13
#11 Andrew E. Breault RTX (Raytheon) 12
#12 Joseph F. Loersch RTX (Raytheon) 11
#13 Jeffrey M. Izard Otis Elevator 7
#13 Aristotle Parasco RTX (Raytheon) 7
#15 Conrad M. Banas RTX (Raytheon) 6
#16 Robert W. Ade Uniphase 5
#16 William Gorra Simoniz Usa 5
#16 James K. Berry RTX (Raytheon) 5
#16 Patrick T. Tracy Coherent 5
#16 Reza Rezvani RTX (Raytheon) 5
#16 John Roberts RTX (Raytheon) 5
#22 John Sypek Hamilton Sundstrand 4
#22 Anthony F. Ferrandino University Of Connecticut 4
#22 William Paul Jacobsen Verrillon 4
#22 Jason A. Meek Actega North America Technologies 4
#22 David M. Mattei Worldpay 4
#22 Michael W. Raymond Moore Business Forms 4
#28 Mainul M. Islam RTX (Raytheon) 3
#28 Harold C. Sanborn RTX (Raytheon) 3
#28 Clement M. Mazgelis Bank of America 3
#28 A. Jonathan Bawabe Ensign-Bickford Aerospace & Defense 3
#28 Thomas P. Mortimer RTX (Raytheon) 3
#28 Gregory P. Goddu Hartford Fire Insurance 3
#28 K. Narasimha Reddy Otis Elevator 3
#28 Andrzej Pawel Szatkowski Instrument Manufacturing 3
#28 Stephen T. Narsavage RTX (Raytheon) 3
#28 Jeffrey Monroe Gerber Garment Technology 3
#38 Duncan C. Meyers RTX (Raytheon) 2
#38 Justin Roger DeLarm RTX (Raytheon) 2
#38 Robert L. Putman RTX (Raytheon) 2
#38 John F. Schnetzer Gerber Garment Technology 2
#38 Kyle K. Busque Wearsafe Labs 2
#38 Larwence S. Wolfson Gerber Systems 2
#38 Jeff Izard Otis Elevator 2
#38 Narasimha K. Reddy Otis Elevator 2
#38 Walter B. Wagner NASA 2
#38 Joseph E Noonan, Jr. GE 2
#38 Wilford Armstrong, III RTX (Raytheon) 2
#49 Christopher F. Duffy RTX (Raytheon) 1
#49 Clifford A. Scorso, Jr. Koh-I-Noor Rapidograph 1

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