Registered patent attorney
Donald J Ersler
Firm
Donald J. Ersler, S.C.
Address
1165 Terrace Drive
Elm Grove, WI, 53005
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Elm Grove, Wisconsin
- Ethel R. MachiUSPTO Reg. 67482
- Isabel M. McNamaraUSPTO Reg. 82566
- Donald Edwin PorterUSPTO Reg. 20597
- Galo I VargasUSPTO Reg. 53717
Frequently asked
Frequently asked about Donald J Ersler
Is Donald J Ersler a registered patent attorney?
Yes. Donald J Ersler is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 38753). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Donald J Ersler located?
Donald J Ersler's office is in Elm Grove, Wisconsin (53005). Affiliated with Donald J. Ersler, S.C..
What firm does Donald J Ersler work at?
Donald J Ersler is listed as affiliated with Donald J. Ersler, S.C. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Donald J Ersler?
Donald J Ersler's office phone (per the USPTO public roster) is 262-785-0160. 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.