Patent Attorney
Gregory A Duffey
Reg. No. 42501
Active
Not accepting new clients
Firm
Law Office of Gregory Duffey
Law Office of Gregory Duffey
Location
Washington, DC 20004
Washington, DC 20004
Phone
202-204-3038
202-204-3038
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.