<2017-All> Firm Ranking of the number of Japanese granted patents in the Catheter field in 2017

2019-01-19 2019-04-28

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

Technical field: Catheter (balloon catheter, robotic catheter system, intravenous catheter apparatus, etc.)
Status: Japanese granted patents in 2017 (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	34	SHINSEI PATENT OFFICE	View
2	33	ONDA TECHNO Intl. Patent Attys	View
3	31	SHUSAKU・YAMAMOTO	View
4	24	TANI & ABE, p.c.	View
5	20	Kai-U Patent Law Firm	View
6	19	SHIGA International Patent Office	View
7	19	SEIWA PATENT & LAW	View
8	17	YUASA AND HARA	View
9	16	Aoyama & Partners	View
10	15	Toho International Patent & Law Office	View
11	11	Nakamura & Partners	View
12	11	Sonare IP Firm	View
13	10	SOYO International IP Attorneys	View
14	10	ITOH International Patent Office	View
15	9	U'sfi Patent Attorneys International Office	View
16	9	Aichi & Mashiko Patent Firm Ochanomizu Office	None
17	9	Soei Patent & Law Firm	View
18	9	HATTA & ASSOCIATES	View
19	8	Ohtsuka Patent Office	View
20	7	Yoshimoto International 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, catheter).
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.