Patent Agent
Billy Y Lau
Reg. No. 40248
Active
Not accepting new clients
Location
Walnut, CA 91789
Walnut, CA 91789
Phone
626-922-5500
626-922-5500
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.