Patent Attorney
Sangeun Chang
Reg. No. 78780
Active
Not accepting new clients
Location
Irvine, CA 92618
Irvine, CA 92618
Phone
312-647-9463
312-647-9463
Registration Type
ATTORNEY
ATTORNEY
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.