Registered patent attorney
Jonathan W. Parthum
Firm
Cahn & Samuels, LLP
Address
1110 17th Street NW
Washington, DC, 20036
US
Phone
Registered as
Registered patent attorney
Other attorneys at Cahn & Samuels, LLP
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- Michael T. AbramsonJordan IP Law
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Frequently asked
Frequently asked about Jonathan W. Parthum
Is Jonathan W. Parthum a registered patent attorney?
Yes. Jonathan W. Parthum is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 64082). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Jonathan W. Parthum located?
Jonathan W. Parthum's office is in Washington, District of Columbia (20036). Affiliated with Cahn & Samuels, LLP.
What firm does Jonathan W. Parthum work at?
Jonathan W. Parthum is listed as affiliated with Cahn & Samuels, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Jonathan W. Parthum?
Jonathan W. Parthum's office phone (per the USPTO public roster) is 202-331-8777. 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.