Patent Agent
David William Old
Reg. No. 77309
Active
Not accepting new clients
Firm
Maschoff Brennan
Maschoff Brennan
Location
Irvine, CA 92618
Irvine, CA 92618
Phone
949-202-1905
949-202-1905
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.