Europe patent firms that work most with Japan firms

Ranked by patent family observations each Europe firm shares with Japan firms, 2013–2022. A family is counted once for each Japan firm it was shared with, so the same family can appear more than once. Later years are left out because many filings are not published yet.

#	Firm	Family observations with Japan firms	Japan firms
1	Hoffmann EitlePatent- und Rechtsanwälte PartmbB	16,339	408
2	Grünecker Patent- und Rechtsanwälte PartG mbB	8,598	319
3	Vossius & Partner Patentanwälte Rechtsanwälte mbB	6,304	238
4	Müller-Boré & Partner Patentanwälte PartG mbB	5,355	258
5	Mewburn Ellis LLP	4,090	260
6	Pfenning Meinig Partner	3,935	86
7	TBK	3,926	276
8	BIP Patents	2,755	16
9	D Young & Co LLP	2,718	131
10	J A Kemp	2,402	186
11	Lavoix	2,237	125
12	Witte, Weller & Partner Patentanwälte mbB	2,217	84
13	Philips Intellectual Property & Standards	2,172	18
14	MERH-IP	2,095	98
15	Wuesthoff & Wuesthoff	2,014	76
16	Dehns	1,981	119
17	Marks & Clerk	1,928	159
18	Novagraaf	1,893	132
19	Meissner Bolte	1,760	131
20	dompatent	1,703	135
21	Plasseraud IP	1,701	140
22	Viering, Jentschura & Partner mbB Patent- und Rechtsanwälte	1,647	133
23	Boehmert & Boehmert	1,597	150
24	Gill Jennings & Every LLP	1,559	156
25	HGF	1,547	163

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