IP Library
Patent Attorney

John Wittenzellner

Reg. No. 61662
Active
Not accepting new clients
Firm
Williams Simons & Landis PLLC
Location
Philadelphia, PA 19103
Phone
512-543-1373
Registration Type
ATTORNEY
Roster
USPTO OED FY25
Search their patent cases → All cases at Williams Simons & Landis PLLC
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.