Registered patent attorney
John F Witherspoon
Address
1776 K. Street NW
Suite 800
Washington, DC, 20006
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about John F Witherspoon
Is John F Witherspoon a registered patent attorney?
Yes. John F Witherspoon is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 20844). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is John F Witherspoon located?
John F Witherspoon's office is in Washington, District of Columbia (20006).
How do I contact John F Witherspoon?
John F Witherspoon's office phone (per the USPTO public roster) is 202-835-3700. 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.