<2018-All> Firm Ranking of the number of Japanese granted patents in the Biotechnology field in 2018

2019-03-04 2019-04-28

The following table shows the ranking of Japanese IP law firm. The ranking is based on the following conditions.

Technical field: Biotechnology (Protein, amino acid, DNA, RNA, Recombinant DNA, antibody, peputide, iPS cell, ES cell, vaccine, etc.)
Status: Japanese granted patents in 2018 (registration date).
First country: All (i.e., patents with claiming priority of a Japanese application or a foreign application, or without claiming priority).
Count: The number of patents handled by each Japanese IP law firm was counted (if the applicant is represented by a firm member (attorney), it was counted as being handled by the firm).

Ranking	No.	IP law firm	Website
1	505	SHUSAKU・YAMAMOTO	View
2	333	SHIGA International Patent Office	View
3	326	Hiraki & Associates	View
4	323	Shimizu Patent Office	View
5	312	Aoyama & Partners	View
6	266	Abe, Ikubo & Katayama	View
7	247	SEIWA PATENT & LAW	View
8	210	Nakamura & Partners	View
9	208	YUASA AND HARA	View
10	143	Soei Patent & Law Firm	View
11	133	SAEGUSA & Partners	View
12	128	Kuzuwa & Partners	View
13	123	KAWAGUTI & PARTNERS	View
14	106	Takaoka IP Law	View
15	104	SUBARU PATENT OFFICE	View
16	101	Sonoda & Kobayashi	View
17	98	KYOWA PATENT AND LAW OFFICE	View
18	98	Takashima International Patent Office	View
19	93	TSUKUNI & ASSOCIATES	View
20	90	The Patent Corporate Body Aruga Patent Office	View
21	83	TMI Associates	View
22	74	SIKs & Co.	View
23	74	Anderson Mori & Tomotsune	View
24	71	Hirota & Associates	View
25	67	ONDA TECHNO Intl. Patent Attys	View
26	65	IP Firm SHUWA	View
27	64	Asamura Patent Office, p.c.	View
28	62	OHNO & PARTNERS	View
29	59	ITOH International Patent Office	View
30	55	Orion Patent Office	View
31	55	Okuyama & Sasajima	View
32	54	SUZUYE & SUZUYE Intellectual Property Law	View
33	54	Shobayashi International Patent &Trademark Office	View
34	50	SUGIMURA & Partners	View
35	50	HARAKENZO WORLD PATENT & TRADEMARK	View
36	49	Hirota, Nagare & Associates	View
37	49	TAIYO, NAKAJIMA & KATO	View
38	45	Sonderhoff & Einsel	View
39	44	Kita-Aoyama International Patent Bureau	View
40	42	SK Intellectual Property Law Firm	View

In preparing the table, a patent search expert conducted a patent search using patent classification and keywords (as necessary) in order to extract patents in specific technical field (here, Biotechnology field).
In the patent search, it was confirmed that a high-accuracy population (i.e., a population not including non-relevant fields) of patents was obtained. Subsequently, the population was used to create the table.

By entering the Firm name or Attorney name in the "Legal Representative Name" column of Patentscope (search system of WIPO), you can find the patent information handled by each Firm.