Registered patent agent
Dean A Ersfeld
Firm
3M Innovative Properties Company
Address
P O Box 33427
Saint Paul, MN, 55133
US
Phone
Registered as
Registered patent agent
Other attorneys at 3M Innovative Properties Company
- Trisha Durbin AdamsonUSPTO Reg. 55860 · St. Paul, MN
- Scott A BaumUSPTO Reg. 51237 · St. Paul, MN
- Melissa Evans BussUSPTO Reg. 47465 · Saint Paul, MN
- Michael G CobianUSPTO Reg. 52756 · St Paul, MN
- Stephen L. CrooksUSPTO Reg. 62218 · St. Paul, MN
- Philip Y DahlUSPTO Reg. 36115 · St Paul, MN
- Erik M. DrangeUSPTO Reg. 57750 · St. Paul, MN
- Philip J DumontUSPTO Reg. 62994 · St. Paul, MN
Other patent attorneys in Saint Paul, Minnesota
- Sumit AgarwalUSPTO Reg. 63445
- Theodore Joseph AndersMitchell Hamline School of Law
- Brett Jerome AndersonMitchell Hamline School of Law
- Michael P BakkeUSPTO Reg. 80342
- Haley BeannMitchell Hamline School of Law
- Sharon Rose Benjamin3M
- Colene Elizabeth Hartman Blank3M Innovative Properties CO, Office of Intellectua
- Katherine S BoyleUSPTO Reg. 57827
Frequently asked
Frequently asked about Dean A Ersfeld
Is Dean A Ersfeld a registered patent attorney?
Dean A Ersfeld is a registered patent agent (USPTO Registration Number 46689). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Dean A Ersfeld located?
Dean A Ersfeld's office is in Saint Paul, Minnesota (55133). Affiliated with 3M Innovative Properties Company.
What firm does Dean A Ersfeld work at?
Dean A Ersfeld is listed as affiliated with 3M Innovative Properties Company on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Dean A Ersfeld?
Dean A Ersfeld's office phone (per the USPTO public roster) is 651-733-7830. Verify availability and intake details directly with the firm before sending privileged materials.
Should I prepare anything before contacting a patent attorney?
Yes — most patent attorneys quote based on a brief. Persoona's intellectual property module generates a prior-art analysis, defensibility scorecard, and a draft USPTO filing package so you arrive with a brief, not a blank slate. Free to run.
Profile sourced from the USPTO OEDCI Practitioner Roster. Persoona did not provide, edit, or curate this data — every field is pulled directly from the public roster.