IP Library
Patent Attorney

Petrina Sze-Wai Hsi

Reg. No. 38496
Active
Not accepting new clients
Firm
Amgen, Inc.
Location
Thousand Oaks, CA 91320
Phone
805-447-8631
Registration Type
ATTORNEY
Roster
USPTO OED FY25
Search their patent cases → All cases at Amgen, Inc.
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.