Patent Agent
Leong Chi Lei
Reg. No. 50402
Active
Not accepting new clients
Firm
A and J Intrntl Patent Office
A and J Intrntl Patent Office
Location
Walnut Creek, CA 94598
Walnut Creek, CA 94598
Phone
480-561-4607
480-561-4607
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.