Delaware — Patent Inventors 2025

Top Cities in Delaware 2025

Rank	City	Patents	Inventors
#1	Wilmington, DE	363	248
#2	Heidelberg, DE	317	211
#3	Hannover, DE	212	151
#4	Nonatum Mills, DE	210	131
#5	Essen, DE	134	90
#6	Bietigheim-Bissingen, DE	110	83
#7	Hockessin, DE	69	35
#8	Dover, DE	63	31
#9	Middletown, DE	47	27
#10	Bear, DE	40	23
#11	Claymont, DE	35	8
#12	Hsinchu, DE	30	4
#13	Hangzhou City, DE	25	5
#14	Shanghai, DE	21	7
#15	Bergen, DE	14	1
#16	Georgetown, DE	14	3
#17	Jinan, DE	12	2
#18	Beijing, DE	12	6
#19	Wuxi, DE	12	2
#20	New Castle, DE	12	7
#21	Stockholm, DE	12	1
#22	Longbeilingcun, DE	12	4
#23	Frankfurt am Main, DE	11	3
#24	Suwon-si, DE	11	2
#25	Memmingen, DE	9	7

Rank	Inventor	City	Company	Patents
1	Zhuo Chen	Claymont	Convida Wireless	25
2	David Luo	Nonatum Mills	Dcstar	22
3	Erik Dahl	Nonatum Mills	Bank of America	12
3	Bamdad Bahar	Georgetown	Ffi Ionix Ip	12
#5	Sheng Peng	Hockessin	The Chemours Company Fc	10
#5	Patrick J. G. Bowers	Hockessin	Wonderland Switzerland Ag	10
#7	Sandor Kovacs	Middletown	Meso Scale Technologies, Llc.	9
#7	Matthew A. Johnson	Nonatum Mills	Denso International America	9
#9	Jonathan E. Abbott	Wilmington	Milwaukee Electric Tool	8
#9	Meng Hou	Nonatum Mills	Huawei	8
#11	Seah Lim	Wilmington	Medicovestor	7
#11	Michael J. McCarthy	Wilmington	Optum Services (Ireland) Limited	7
#13	Randal R. Betz	Wilmington	Medos International Sarl	6
#14	David R. Wooten, Jr.	Middletown	Monsanto Technology	5
#14	Yongchun Pan	Wilmington	Incyte	5
#14	Dave CAREY	Middletown	JPMorgan Chase	5
#14	Liangxing Wu	Wilmington	Incyte	5
#14	Lei Zhang	Hockessin	Showa Denko K.K.	5
#14	Mary E. Koban	Wilmington	The Chemours Company Fc	5
#14	Jiacheng Zhou	Nonatum Mills	Incyte	5
#14	Jiaxin Xu	Dover	Changchun Institute Of Optics, Fine Mechanics And Physics, Chinese Academy Of Sciences	5
#14	Nathan Stafford	Bear	American Air Liquide	5
#14	Xiangyu Guo	Bear	American Air Liquide	5
#24	Dionisios G. Vlachos	Nonatum Mills	University Of Delaware	4
#24	Yigang He	Nonatum Mills	Wuhan University	4