Registered patent agent
Joseph M. Ellsworth
Address
409 S. Duchesne
St. Charles, MO, 63301
US
Phone
Registered as
Registered patent agent
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Frequently asked about Joseph M. Ellsworth
Is Joseph M. Ellsworth a registered patent attorney?
Joseph M. Ellsworth is a registered patent agent (USPTO Registration Number 67589). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Joseph M. Ellsworth located?
Joseph M. Ellsworth's office is in St. Charles, Missouri (63301).
How do I contact Joseph M. Ellsworth?
Joseph M. Ellsworth's office phone (per the USPTO public roster) is 314-232-2167. 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.