Patent Agent
Weidan Fan
Reg. No. 74304
Active
Not accepting new clients
Firm
Leydig, Voit & Mayer, LTD
Leydig, Voit & Mayer, LTD
Location
Chicago, IL 60601-6731
Chicago, IL 60601-6731
Phone
312-616-5749
312-616-5749
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.