Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Preston, CT ranks #5,851 worldwide for total patents filed all time, with 432 patents from 69 inventors. Leading employers of inventors based in Preston, CT include Plastibec, Dekalb Genetics, Pfizer.

Showing 1–50 of 69 inventors

Rank Inventor Primary Company Patents
1 Richard H. Seager Plastibec 68
2 David Walters Dekalb Genetics 37
3 George J. Quallich Pfizer 33
#4 Joseph V. DeBartolo, Jr. Hubbell Incorporated 29
#5 Charles W. Murtiashaw Pfizer 22
#6 Brandon Davis Monsanto Technology 19
#7 James F. Ennis, III Genesis Industries 17
#8 Timothy T. Tylaska Unknown 12
#8 Douglas V. Poscich Burton 12
#10 Lynwood F. Crary Ti Group Automotive Systems 11
#11 Anthony A. Fossa Pfizer 10
#12 Everett Rosey Pfizer 9
#12 Nancy M. Houmard Monsanto Technology 9
#14 Paige Roanne Palmer Brooks Pfizer 8
#14 Gary Bateson Hubbell Incorporated 8
#16 Michael J. Stankosky 6
#16 William G. Start Dekalb Genetics 6
#18 Paul Filewich RTX (Raytheon) 5
#18 John Hakkinen Phytopharm Plc 5
#18 Bruno Caspar Hancock Jenike & Johanson 5
#18 Bishop Wlodecki Pfizer 5
#22 Douglas Sasko US Air Force 4
#22 Stevin Zorn Pfizer 4
#22 Brian Marquez Bruker Biospin Gmbh 4
#22 Catherine Angela Hulford Pfizer 4
#22 Gene Castles Drs Power & Control Technologies 4
#22 Beth Vetelino Pfizer 4
#22 Andrew Morgan Stewart Medisynergics 4
#22 David C. Hoddinott Crompton & Knowles 4
#30 Richard F. Hank Pfizer 3
#30 Richard S. Matthews Pfizer 3
#30 Gloria J. Kostek Pfizer 3
#30 George Rinaudo Gunther International 3
#30 Michael S. Sinko Electric Boat 3
#30 Brian E. Elias Worcester Polytechnic Institute 3
#30 Michael Vetelino Pfizer 3
#30 Clayton S. Vetsch Monsanto Technology 3
#38 Glen E. Colechia 2
#38 Laurie A. Tylaska Amgen 2
#38 Donald Collier 2
#38 John V. Marino RTX (Raytheon) 2
#38 Michael Stephen Willy Pfizer 2
#38 Richard Cerini Ti Group Automotive Systems 2
#38 Nicanor P. Demesa, III Harris 2
#38 Alexander Peter Karpinski Eaglepicher Technologies 2
#46 Tyler J. Cipriani Ensemble Therapeutics 1
#46 James C. Spavins Pfizer 1
#46 John Laabs Harris 1
#46 Robert G. Moschgat Microsonic 1
#46 Sheri L. Shamblin Bend Reserch 1

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