Registered patent attorney
Douglas Eric Ringel
Firm
Potomac Law Group. PLLC
Address
1717 Pennsylvania Avenue NW
Suite 1025
Washington, DC, 20006
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Douglas Eric Ringel
Is Douglas Eric Ringel a registered patent attorney?
Yes. Douglas Eric Ringel is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 34416). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Douglas Eric Ringel located?
Douglas Eric Ringel's office is in Washington, District of Columbia (20006). Affiliated with Potomac Law Group. PLLC.
What firm does Douglas Eric Ringel work at?
Douglas Eric Ringel is listed as affiliated with Potomac Law Group. PLLC on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Douglas Eric Ringel?
Douglas Eric Ringel's office phone (per the USPTO public roster) is 202-570-4180. 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.