IP Library
Patent Attorney

Martha J. Engel

Reg. No. 61534
Active
Not accepting new clients
Firm
3M
Location
Saint Paul, MN 55144
Phone
651-420-0632
Registration Type
ATTORNEY
Roster
USPTO OED FY25
Search their patent cases → All cases at 3M
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.