Patent Attorney
John Wittenzellner
Reg. No. 61662
Active
Not accepting new clients
Firm
Williams Simons & Landis PLLC
Williams Simons & Landis PLLC
Location
Philadelphia, PA 19103
Philadelphia, PA 19103
Phone
512-543-1373
512-543-1373
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.