Patent Attorney
David W O'Brien
Reg. No. 40107
Active
Not accepting new clients
Firm
Haynes and Boone, LLP
Haynes and Boone, LLP
Location
Austin, TX 78701
Austin, TX 78701
Phone
512-867-8457
512-867-8457
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.