IP Library
Patent Agent

Chien-hung Yu

Reg. No. 74923
Active
Not accepting new clients
Firm
Jiang Chyun Intellectual Property Office
Location
Taipei City 10084
Phone
886-223-69-2800
Registration Type
AGENT
Roster
USPTO OED FY25
Search their patent cases → All cases at Jiang Chyun Intellectual Property Office
Firm and contact info reflects the FY25 roster (last updated September 25). Attorneys may have changed firms since then — patent filings show their current firm of record.