Patent Agent
Marcella A. Billstrom Schroeder
Reg. No. 73322
Active
Not accepting new clients
Firm
Zilka-Kotab, PC
Zilka-Kotab, PC
Location
San Jose, CA 95112
San Jose, CA 95112
Phone
408-971-2573
408-971-2573
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.