Patent Attorney
Donald J O'Brien
Reg. No. 59016
Active
Not accepting new clients
Firm
Andrus IP Law
Andrus IP Law
Location
Milwaukee, WI 53202
Milwaukee, WI 53202
Phone
414-271-7590
414-271-7590
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.