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

  • Technical field:  Antibody (intact antibody, immunoglobulin, heavy/light chain, Fab, etc.)
  • Status:  Japanese granted patents in 2019 (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).
RankingNo.IP law firmWebsite
1115Shimizu Patent Office View
2113SHUSAKU・YAMAMOTO View
357Sonoda & Kobayashi View
452Abe, Ikubo & Katayama View
539SUBARU PATENT OFFICE View
637Aoyama & Partners View
734Hiraki & Associates View
833SHIGA International Patent Office View
931YUASA AND HARA View
1024SEIWA PATENT & LAW View
1124KAWAGUTI & PARTNERS View
1217Nakamura & Partners View
1315Kuzuwa & Partners View
1415TSUKUNI & ASSOCIATES View
1515Orion Patent Office View
1615Anderson Mori & Tomotsune View
1714SAEGUSA & Partners View
1814Takaoka IP Law View
1913Asamura Patent Office, p.c. View
2011TMI 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, Antibody 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.

Sponsored link
Recommended articles