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

2019-05-04 2019-04-30

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: Japan (i.e., (i) patents with claiming priority of a Japanese application, (ii) patents based on Japanese domestic application, or (iii) patents based on PCT application whose receiving office is Japan Patent Office without claiming any 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	168	Hiraki & Associates	View
2	135	SHIGA International Patent Office	View
3	98	SAEGUSA & Partners	View
4	83	The Patent Corporate Body Aruga Patent Office	View
5	69	Aoyama & Partners	View
6	58	SIKs & Co.	View
7	54	Takashima International Patent Office	View
8	47	KYOWA PATENT AND LAW OFFICE	View
9	46	Abe, Ikubo & Katayama	View
10	41	YUASA AND HARA	View
11	40	Soei Patent & Law Firm	View
12	37	IP Firm SHUWA	View
13	37	Sakai International Patent Office	View
14	34	Hirota & Associates	View
15	32	TMI Associates	View
16	32	SEIWA PATENT & LAW	View
17	29	YASUTOMI & Associates	View
18	29	OHNO & PARTNERS	View
19	29	Iwatani Patent Office	View
20	29	Shimizu Patent Office	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.