Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Dover, OH ranks #7,022 worldwide for total patents filed all time, with 337 patents from 91 inventors. Leading employers of inventors based in Dover, OH include Diebold, Dover Chemical, Allied Machine & Engineering. That works out to 25.7 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 91 inventors

Rank Inventor Primary Company Patents
1 Harry T. Graef Diebold 38
2 Donald Stevenson Dover Chemical 35
3 Joseph P. Nuzzi Allied Machine & Engineering 19
3 Mark A. Joki The Timken 19
#5 Mike Lawver Diebold 12
#6 Thomas C. Bulgrin Van Dorn Demag 10
#7 Michael A. Davis Unknown 8
#7 William Mullet Provia Door 8
#7 Duong Nguyen Dover Chemical 8
#10 Randy Breyer Commercial And Architectural Products 7
#10 John K. Graybill Air Products And Chemicals 7
#12 Timothy A. Ashcraft Handy & Harman Automotive Group 6
#12 Timothy G. Stokey Allied Machine & Engineering 6
#14 Susan M. Feltovich Advanced Cardiovascular Systems 5
#14 Melvin W. Cook Masonite 5
#14 Don Stevenson Dover Chemical 5
#14 Gerard Martin Palmersheim Systech 5
#14 Brian Keith Heston Zimmer 5
#14 Shaun Immel The Goodyear Tire & Rubber 5
#14 William J. Donizetti Zimmer 5
#21 Ganesh B. Pavalarajan Zimmer 4
#21 Scott E. Frye Flex Technologies 4
#21 David Beechy Akron Brass 4
#24 Jeffrey B. Boggs Zimmer 3
#24 Steven R. Stokey Allied Machine & Engineering 3
#24 Lynn A. Bente The Goodyear Tire & Rubber 3
#24 Herbert E. Stumph, III Stress Engineering Services 3
#24 Rocco Gemma King Pharmaceuticals Research And Development 3
#24 Scott B. Miller Zimmer 3
#24 Pavel Kirochko 3
#24 Mark R. Rufener Bristol-Myers Squibb 3
#24 Satyan Kodali Dover Chemical 3
#33 Steve Broadbent B.Braun Medical 2
#33 Linda L. Pfingsten The Standard Oil 2
#33 Michael J. Comella 2
#33 Michael J. Blakely 2
#33 Michael T. Perkowski 2
#33 Terry Burrell L. J. Smith 2
#33 Ryder L. Russell Zimmer 2
#33 Thomas J. Snyder Ohio Gratings 2
#33 Charles Tinker Atc Leasing Company 2
#33 Joseph Duarte General Motors 2
#33 Christopher A. Finn Zimmer 2
#33 Dennis L. Queary Globe Motors 2
#33 Richard Michel Miller Products 2
#33 Logan J. Lamonica Allied Machine & Engineering 2
#33 Walter J. Connare Gmi Holdings 2
#33 Matteo Rini 2
#33 Todd B. Grimm Snyder Laboratories 2
#33 Raymond K. Tharp, Jr. 2

Part of Ohio