Patent Attorney
Thomas L Treffert
Reg. No. 48279
Active
Not accepting new clients
Firm
Law Office of Thomas L. Treffert
Law Office of Thomas L. Treffert
Location
San Francisco, CA 94107
San Francisco, CA 94107
Phone
415-830-6420
415-830-6420
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.