Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Baltimore, MD ranks #135 worldwide for total patents filed all time, with 20,225 patents from 4,923 inventors. Leading employers of inventors based in Baltimore, MD include Unstoppable Domains, The Johns Hopkins University, Black & Decker. That works out to 34.5 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 4,923 inventors

Rank Inventor Primary Company Patents
1 Lisa Seacat DeLuca Unstoppable Domains 620
2 Bert Vogelstein The Johns Hopkins University 242
3 Kenneth W. Kinzler The Johns Hopkins University 222
#4 Daniel Puzio Black & Decker 144
#5 Fraser M. Smith Sarcos 127
#6 Ronald C. Dzierwa Digital Global Systems 103
#7 Charles E. Beller IBM 101
#8 Matthew J. Velderman Black & Decker 99
#9 Henry R. Halperin Greatbatch 89
#10 Henrik Olsen Human Genome Sciences 78
#11 Tylan A. Tschopp Black & Decker 76
#12 Justin Hanes The Johns Hopkins University 71
#13 Alok Singh US Air Force 69
#14 Daniel Michael Leo Thermochem Recovery International 67
#15 William Albert Tartal United States Postal Service 66
#16 Martin G. Pomper The Johns Hopkins University 65
#17 Steven M. Falk GE 61
#17 Thomas Elliot Rabe The Procter & Gamble 61
#19 Paul A. Bottomley GE 59
#20 Marin Kobilarov Zoox 58
#21 David Dombrow Under Armour 57
#22 Richard Vandervoort Cox AT&T 56
#22 William A. Edelstein GE 56
#22 David M. Brown Nicor 56
#25 Jie Xiao Battelle Memorial Institute 55
#26 Judy H. Huang Applied Materials 54
#27 Justin X. Howe Mastercard 53
#28 Jeffrey H. Siewerdsen The Johns Hopkins University 52
#29 Solomon H. Snyder The Johns Hopkins University 51
#30 Robert I. Somers Black & Decker 49
#31 Kyle Blakely Under Armour 48
#31 Michael Hart Ricereto Newell Operating 48
#33 Zhiyong Xia Ford 47
#34 Bradley M. Starobin Sound United 45
#35 Hai-Quan Mao The Johns Hopkins University 44
#36 Alexander Wayne Clark HP 43
#36 Victor Velculescu The Johns Hopkins University 43
#38 Stuart W. Lumsden Sound United 42
#39 Vladimir Pelekhaty Ciena 41
#40 John-Francis Mergen RTX (Raytheon) 40
#40 Ronald D. Berger The Johns Hopkins University 40
#40 Richard B. C. Tucker, Sr. Stx 40
#40 Gregory D. Hager The Johns Hopkins University 40
#44 Richard B. North Medtronic 39
#44 F. Grant Kovach Under Armour 39
#46 Gary H. Posner The Johns Hopkins University 38
#47 David H. Gracias Intel 37
#47 Alan Guyan Under Armour 37
#49 David B. Lee Black & Decker 35
#49 Pierre Mertz Infinera 35

Part of Maryland