<2017-Foreign> 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: Foreign (i.e., patents with claiming priority of a foreign application, or patents based on PCT application whose receiving office is not 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	494	SHUSAKU・YAMAMOTO	View
2	273	Abe, Ikubo & Katayama	View
3	263	Aoyama & Partners	View
4	242	Shimizu Patent Office	View
5	215	Nakamura & Partners	View
6	198	SHIGA International Patent Office	View
7	177	SEIWA PATENT & LAW	View
8	168	Hiraki & Associates	View
9	156	YUASA AND HARA	View
10	124	TSUKUNI & ASSOCIATES	View
11	110	KAWAGUTI & PARTNERS	View
12	105	SUBARU PATENT OFFICE	View
13	105	Sonoda & Kobayashi	View
14	94	Anderson Mori & Tomotsune	View
15	81	Soei Patent & Law Firm	View
16	78	Takaoka IP Law	View
17	72	Kuzuwa & Partners	View
18	64	Asamura Patent Office, p.c.	View
19	60	KYOWA PATENT AND LAW OFFICE	View
20	59	TMI Associates	View
21	57	Orion Patent Office	View
22	55	Takashima International Patent Office	View
23	53	HARAKENZO WORLD PATENT & TRADEMARK	View
24	48	SAEGUSA & Partners	View
25	46	Kita-Aoyama International Patent Bureau	View
26	44	In-house patent attorney	－
27	44	SUZUYE & SUZUYE Intellectual Property Law	View
28	43	OHNO & PARTNERS	View
29	37	KIYOHARA & CO.,PATENT ATTORNEYS	View
30	35	Hirota, Nagare & Associates	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.