<2017-JP> Firm Ranking of the number of Japanese granted patents in the Pharmaceutical field in 2017

2019-01-10 2019-04-28

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

Technical field: Pharmaceutical (pharmaceutical composition, medicine, API, production method of thereof, etc.)
Status: Japanese granted patents in 2017 (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	100	The Patent Corporate Body Aruga Patent Office	View
2	82	Takashima International Patent Office	View
3	75	SAEGUSA & Partners	View
4	73	Hiraki & Associates	View
5	54	Aoyama & Partners	View
6	44	Soei Patent & Law Firm	View
7	40	Shimizu Patent Office	View
8	37	SIKs & Co.	View
9	37	Iwatani Patent Office	View
10	33	SEIWA PATENT & LAW	View
11	31	TSUKUNI & ASSOCIATES	View
12	28	YUASA AND HARA	View
13	25	Hirota, Nagare & Associates	View
14	25	Abe, Ikubo & Katayama	View
15	22	SHIGA International Patent Office	View
16	22	In-house patent attorney	－
17	21	Moegi Patent Office	View
18	21	TAIYO, NAKAJIMA & KATO	View
19	19	Hirota & Associates	View
20	19	IP Firm SHUWA	View
21	19	LEXIA PARTNERS	View
22	18	Eimei Patent Office	None
23	18	CENTCREST IP Attorneys	View
24	18	In-house patent attorney	－
25	18	TMI Associates	View
26	15	Asamura Patent Office, p.c.	View
27	14	In-house patent attorney	－
28	14	Patent corporate body ARCO PATENT OFFICE	View
29	13	YuNeed International Patent Office	View
30	13	Nakamura & Partners	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, pharmaceutical 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.