IP Library
Patent Agent

Dean A Ersfeld

Reg. No. 46689
Active
Not accepting new clients
Firm
3M Innovative Properties Company
Location
Saint Paul, MN 55133
Phone
651-733-7830
Registration Type
AGENT
Roster
USPTO OED FY25
Search their patent cases → All cases at 3M Innovative Properties Company
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.