<2021-Foreign> Firm Ranking of the number of Japanese granted patents in the Pharmaceutical field in 2021

2022.10.13 2022.10.15

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 2021 (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	Web
1	518	SHUSAKU・YAMAMOTO	View
2	329	Aoyama & Partners	View
3	310	Shimizu Patent Office	View
4	276	SHIGA International Patent Office	View
5	235	Abe, Ikubo & Katayama	View
6	196	SEIWA PATENT & LAW	View
7	174	YUASA AND HARA	View
8	167	Hiraki & Associates	View
9	153	Nakamura & Partners	View
10	142	Sonoda & Kobayashi	View
11	135	TSUKUNI & ASSOCIATES	View
12	107	Kuzuwa & Partners	View
13	107	SUBARU PATENT OFFICE	View
14	107	Anderson Mori & Tomotsune	View
15	96	Soei Patent & Law Firm	View
16	93	Takaoka IP Law	View
17	92	KAWAGUTI & PARTNERS	View
18	75	Asamura Patent Office, p.c.	View
19	73	SAEGUSA & Partners	View
20	67	KIYOHARA & CO.,PATENT ATTORNEYS	View
21	66	Orion Patent Office	View
22	56	Takashima International Patent Office	View
23	54	KYOWA PATENT AND LAW OFFICE	View
24	53	HARAKENZO WORLD PATENT & TRADEMARK	View
25	53	TMI Associates	View
26	47	SUGIMURA & Partners	View
27	47	ONDA TECHNO Intl. Patent Attys	View
28	38	Unius Patent Attorneys Office	View
29	38	Hirota & Associates	View
30	36	YuNeed International Patent Office	View
31	35	SUZUYE & SUZUYE Intellectual Property Law	View
32	34	Hirota, Nagare & Associates	View
33	34	Yoshikawa International Patent Office	View
34	34	Nagoya International Patent Firm	View
35	33	Ashida & Kimura	View
36	33	HIROE AND ASSOCIATES, patent professional corporation	View
37	33	In-house patent attorney	－
38	31	OHNO & PARTNERS	View
39	30	Kita-Aoyama International Patent Bureau	View
40	28	Shobayashi International Patent &Trademark Office	View
41	27	Shinjyu GLOBAL IP	View
42	27	SK Intellectual Property Law Firm	View
43	25	SHINSEI PATENT OFFICE	View
44	24	TAIYO, NAKAJIMA & KATO	View
45	23	IP Firm SHUWA	View
46	21	HOSODA INTERNATIONAL PATENT OFFICE	View
47	20	TOKYO ACTi International Patent and Trademark Office	View
48	20	Iwatani Patent Office	View
49	19	Okuyama & Sasajima	View
50	19	Fukami Patent Office, P.C.	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.