Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Hagerstown, MD ranks #4,060 worldwide for total patents filed all time, with 701 patents from 223 inventors. Leading employers of inventors based in Hagerstown, MD include Jlg Industries, State Farm, Pangborn. That works out to 16.1 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 223 inventors

Rank Inventor Primary Company Patents
1 Ignacy Puszkiewicz Jlg Industries 45
2 Craig M. Main State Farm 39
3 James H. Carpenter Pangborn 31
#4 Eduard F. B. Boeckmann Gte Communication Systems 27
#5 William J. Moore Pfizer 20
#6 Joseph W. Pillis Frick 13
#7 David A. Sprankle Automated Merchandising Systems 11
#8 Roy Jones Dsi Underground Systems 10
#8 John Jerwick Mack Trucks 10
#10 Vincent E. Schoeck, Jr. Fil-Tec Holdings 9
#11 Amir Yaraghi Fil-Tec Holdings 8
#11 Denzil C. Poling 8
#11 Bradley S. Kresge Oshkosh 8
#14 Matthew G. Wilson Oshkosh 7
#14 Richard Kellogg Morton Volvo Truck 7
#14 Alan Sullivan Paxfire 7
#14 Josef Ott Rampf Molds Industries 7
#14 Vincent E. Schoeck, V Fil-Tec Holdings 7
#14 Lesa F. Bowers Fil-Tec Holdings 7
#20 Michael E. Kahl Mack Trucks 6
#20 Victor Kronstadt Mack Trucks 6
#20 Christopher S. Badorrek Bae Systems Information And Electronic Systems Integration 6
#20 Oldrich S. Kolarik Mack Trucks 6
#20 Lionel S. Sandell E.I. Du Pont De Nemours And 6
#20 Edgar W. Sawyer, Jr. International Telephone And Telegraph 6
#20 Benjamin Schwartzman Amp 6
#20 Jian Li Volvo Truck 6
#28 Robert L. Fix Ingersoll-Rand 5
#28 Ramesh Patel Kiddie Industries 5
#28 John S. Lee US Army 5
#28 William J. Ippolito Unknown 5
#28 David Bray Citibank, N.A. 5
#28 David Charles Elliott GE 5
#28 William Long Sumitomo Machinery Corp. Of America 5
#28 Dave Berry Bayer Healthcare 5
#28 Anton T. Dahbura American Telephone And Telegraph Company, At&T Bell Laboratories 5
#28 David T. West, III 5
#28 Steven Ernest John Bell Queens University Of Belfast 5
#28 Joseph Golden Curators Of The University Of Missouri 5
#28 Mohamed Yahiaoui Jlg Industries 5
#41 Todd C. Rosenthal 4
#41 Donald G. Corderman Kennecott Holdings 4
#41 Peter C. Spellar Frick 4
#41 Michael R. Leonard 4
#41 McKenzie M. Ditty Oshkosh 4
#41 Heath Morris Mack Trucks 4
#41 Arumugam Munuswamy Manitowoc Crane Companies 4
#41 Samuel Kaufman 4
#41 Ramanan Pitchumani U.S. Silica 4
#41 Scott Handy Middle Tennessee State University 4

Part of Maryland