Maryland — Patent Inventors 1989

Top Cities in Maryland 1989

Rank	City	Patents	Inventors
#1	Baltimore, MD	169	133
#2	Bethesda, MD	126	81
#3	Rockville, MD	90	74
#4	Silver Spring, MD	87	68
#5	Ellicott City, MD	68	52
#6	Columbia, MD	67	55
#7	Gaithersburg, MD	52	45
#8	Annapolis, MD	38	24
#9	Timonium, MD	36	22
#10	Severna Park, MD	33	23
#11	Bel Air, MD	29	20
#12	Potomac, MD	28	24
#13	Cockeysville, MD	25	15
#14	Elkton, MD	25	16
#15	Frederick, MD	23	19
#16	Laurel, MD	22	19
#17	Germantown, MD	21	17
#18	Hagerstown, MD	20	13
#19	Nagoya, MD	19	2
#20	Towson, MD	18	8
#21	Olney, MD	17	15
#22	Catonsville, MD	16	15
#23	Pasadena, MD	15	12
#24	Aberdeen, MD	14	7
#25	Salisbury, MD	13	11

Rank	Inventor	City	Company	Patents
1	Joseph Lindmayer	Bethesda	Quanex	12
2	Donald C. Erickson	Annapolis	Air Products And Chemicals	9
3	Anthony J. Antonious	Towson	Adams Golf Ip, Lp	8
#4	William A. Edelstein	Baltimore	GE	7
#4	Danny R. White	Elkton	Lanxide Technology	7
#6	Robert J. Purcell	Cockeysville	Caterpillar	6
#7	Antonio Zamora	Bethesda	IBM	5
#7	Ronald L. Schwenninger	Cumberland	Ppg Industries	5
#7	Charles W. Mallory	Severna Park	Westinghouse Electric	5
#7	Martin P. Gierke	Baltimore	Black & Decker	5
#7	Denzil C. Poling	Hagerstown	—	5
#12	Robert B. Pond, Sr.	New Windsor	National Standard	4
#12	Hermann B. Sequeira	Severna Park	Lockheed Martin	4
#12	Stanley J. Sarnoff	Bethesda	Survival Technology	4
#12	William A. George	Cockeysville	Gte Products	4
#12	Michael G. Ury	Bethesda	Fusion Systems	4
#12	Harry R. Zwicker	Elkton	Lanxide Technology	4
#12	Lin-Nan Lee	Germantown	Hughes Network Systems	4
#12	Ameer G. Mikhail	Bel Air	US Army	4
#12	Richard S. Kain	Bethesda	Russell-William	4
#12	Ryuji Ueno	Easton	Sucampo Ag	4
#12	William J. Siegel	Silver Spring	Pace	4
#12	J. Benjamin Williams	Silver Spring	The Conard Pyle	4
#12	Donald W. Zurwelle	Timonium	Black & Decker	4
#12	Satish K. Wason	Aberdeen	J.M. Huber	4