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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Perry Hall, MD ranks #7,135 worldwide for total patents filed all time, with 328 patents from 78 inventors. Leading employers of inventors based in Perry Hall, MD include Black & Decker, Greenwich Technologies Associates, Siemens Energy & Automation. That works out to 11.2 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 78 inventors

Rank Inventor Primary Company Patents
1 Bhanuprasad V. Gorti Black & Decker 45
2 Carl M. Elam Greenwich Technologies Associates 24
3 Robert L. Stone Siemens Energy & Automation 17
#4 Zhaoli Sun Medregen 15
#4 Li-Chi Pan ITRI 15
#6 Hanhua Feng Institute Of Microelectronics 14
#7 Chetan Bettegowda The Johns Hopkins University 12
#8 Edwin C. Hardesty AT&T 10
#9 Dat Tien Tran US Army 8
#9 Karen Eckert Apple 8
#9 Yoonkee Kim US Army 8
#12 Mark Chou Megica 7
#12 Dechun Li The Johns Hopkins University 7
#12 Paul Frey Union Carbide 7
#12 Daniel Charles Heinz US Army 7
#16 Raymond J. Malecki US Army 6
#17 John Diamond The Boeing 5
#17 James Westdorp Ciena 5
#17 Meredith Reed 5
#17 Derek K. Frempong Pearson Education 5
#21 Mark J. Ginski Alba Therapeutics 4
#21 Robert Chapolini Edwards Lifesciences 4
#21 Christopher M. Peitsch The Johns Hopkins University 4
#24 Marc Schott Robert Bosch Gmbh 3
#24 Michael J. Gaffney 3
#24 Donald Keefer IBM 3
#24 James R. Hetmanski Black & Decker 3
#24 Jens Arnold Symbol Technologies 3
#24 John C. Carpin US Army 3
#24 Alane S. Kimes US Dept of Health & Human Services 3
#24 Nino L Bonavito US Army 3
#24 Bhanu V. GORTI Black & Decker 3
#33 Gary Kenneth Kilper US Army 2
#33 Ernest Williams 2
#33 Rajneesh K. Singh General Motors 2
#33 Michael Chetelat 2
#33 Paul George Kahl, JR. 2
#33 Stephen Novak Chemical Specialties 2
#33 Alex J. Proescher The Johns Hopkins University 2
#33 Willie Lee Thompson, II Morgan State University 2
#33 Sean P. Andrews Verizon 2
#33 Aaron Boteler Bae Systems Information And Electronic Systems Integration 2
#33 Keith A. Wancowicz 2
#33 Mark Behnke Spireon 2
#33 Stephen R. Valancius Black & Decker 2
#46 Peter P. Livolsi Baltimore Aircoil Company 1
#46 Joseph Clifford Fernkas 1
#46 Egberto Toro 1
#46 Ronnie D. King, Jr. Verizon 1
#46 Robert Bousquet 1

Part of Maryland