Patent Attorney
Patrick E Brennan
Reg. No. 56511
Active
Not accepting new clients
Firm
Armstrong Teasdale LLP
Armstrong Teasdale LLP
Location
St. Louis, MO 63105
St. Louis, MO 63105
Phone
314-621-5070
314-621-5070
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.