Maryland — Patent Inventors 2025

Top Cities in Maryland 2025

Rank	City	Patents	Inventors
#1	Baltimore, MD	770	524
#2	Rockville, MD	294	183
#3	Gaithersburg, MD	230	174
#4	Bethesda, MD	215	161
#5	Beijing, MD	213	53
#6	Germantown, MD	193	126
#7	Columbia, MD	175	112
#8	Ellicott City, MD	163	108
#9	Silver Spring, MD	156	111
#10	Potomac, MD	151	88
#11	Frederick, MD	133	71
#12	Chevy Chase Section Five, MD	91	32
#13	Shanghai, MD	91	34
#14	Longbeilingcun, MD	90	18
#15	College Park, MD	77	48
#16	Seoul, MD	69	30
#17	Lo Wu, MD	65	28
#18	Timonium, MD	62	46
#19	Nanjing, MD	60	4
#20	Severna Park, MD	60	24
#21	Tokyo, MD	59	4
#22	Towson, MD	55	39
#23	Annapolis, MD	51	42
#24	North Potomac, MD	47	27
#25	North Bethesda, MD	47	15

Rank	Inventor	City	Company	Patents
1	Jeffrey RULE	Chevy Chase Section Five	Capital One Services	43
2	Gang Wang	Frederick	Google	37
3	Ronald C. Dzierwa	Baltimore	Digital Global Systems	23
#4	Daniel Carbajal	Severna Park	Digital Global Systems	22
#5	Eric Voit	Bethesda	Cisco	16
#5	Donald Gerard Madden	Columbia	Alarm.Com Incorporated	16
#7	Fraser M. Smith	Baltimore	Sarcos	14
#8	Jonghyun Choi	North Bethesda	Samsung	13
#8	Xin Tian	College Park	Shenzhen Zhengtu Auto Accessories Co.	13
#10	Oscar Chi-Lim Au	Rockville	Origin Wireless	12
#11	K. J. Ray Liu	Potomac	Origin Wireless	11
#11	Bryant Yee	Silver Spring	Capital One Services	11
#11	Maximilian Parness	Takoma Park	Toyota	11
#14	Yunseong Nam	North Bethesda	Ionq	10
#14	Bandele Jeffrey-Coker	Deakins Range	Meso Scale Technologies, Llc.	10
#14	Scott Edward Streit	Woodbine	Private Identity	10
#14	Michael Lurie GOLDMAN	University Park	Ionq	10
#18	Jason Madjdi Amini	Takoma Park	Ionq	9
#18	George Daniel Doney	Riva	Dtcc Digital (Us)	9
#18	Thomas B. Carlson	Ellicott City	Monsanto Technology	9
#21	David McGrew	Poolesville	Cisco	8
#21	Howard SPECTOR	Street	JPMorgan Chase	8
#21	Michael T. Mohen	Peacock Corners	Open Text	8
#24	Oleksiy P. Sergyeyenko	Baldwin	Black & Decker	7
#24	Genshe Chen	Germantown	Intel	7