Patent Attorney
Jonathan M Spenner
Reg. No. 57268
Active
Not accepting new clients
Firm
Leydig, Voit & Mayer, Ltd.
Leydig, Voit & Mayer, Ltd.
Location
Chicago, IL 60601-6731
Chicago, IL 60601-6731
Phone
312-616-5600
312-616-5600
Registration Type
ATTORNEY
ATTORNEY
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.