Patent Agent
John Youngfu Chen
Reg. No. 29782
Active
Not accepting new clients
Location
HIiisborough, CA 94010-7200
HIiisborough, CA 94010-7200
Phone
650-558-0333
650-558-0333
Registration Type
AGENT
AGENT
Roster
USPTO OED FY25
USPTO OED FY25
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.