Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Middle River, MD ranks #10,940 worldwide for total patents filed all time, with 175 patents from 30 inventors. Leading employers of inventors based in Middle River, MD include Unknown, W.R. Grace & Co.-Conn., The United States Of America, As Represented By The Secretary, Department Of Health And Human Services. That works out to 5.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–30 of 30 inventors

Rank Inventor Primary Company Patents
1 Charles A. Castronovo Unknown 35
2 Robert P. Kreh W.R. Grace & Co.-Conn. 23
3 Harold W. Holloway The United States Of America, As Represented By The Secretary, Department Of Health And Human Services 17
#4 Tim Patterson Itron 15
#5 Peter Wright Argonaut Technologies 10
#6 George Perry Haynes Kaydon Ring & Seal 8
#7 Joshua Matthew Sadler US Army 7
#8 Ernie Ritchey Becton, Dickinson And 6
#9 Jeff Markley Worthington Armstrong Venture 5
#9 Luna Xu IBM 5
#9 Kristopher Cochran Black & Decker 5
#12 Kyle Hawver Rockwell Collins 4
#12 John Stevens Great Neck Saw Manufacturers 4
#14 Roland N. Emokpae, JR. 3
#14 John P. Zellinger Black & Decker 3
#14 Jeffrey T. Markley Awi Licensing 3
#14 Ming De Lin Koniniklijke Philips N.V. 3
#14 Gerald M. Wilson University Of Maryland, Baltimore 3
#14 Richard Cacchiotti Black & Decker 3
#20 Sandra Peregoy 2
#20 Jason Michael Seabrease GE 2
#22 Matthew J. Bieneman Westinghouse Electric 1
#22 Glen E. Kotapish 1
#22 Michael Etekochay 1
#22 JoAnna M. Esty 1
#22 Brian K. MacIver US Army 1
#22 Sergey Setlonok 1
#22 Patricia A. Gilbert 1
#22 John Michael Peiffer Black & Decker 1
#22 Dean Tornatore Black & Decker 1

Part of Maryland