Patent Attorney
Frederick L Tolhurst
Reg. No. 28123
Active
Not accepting new clients
Firm
Cohen & Grigsby PC
Cohen & Grigsby PC
Location
Pittsburgh, PA 15222-3152
Pittsburgh, PA 15222-3152
Phone
412-297-4900
412-297-4900
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.