Registered patent attorney

Nicholas J. Sullivan

USPTO Reg. 81697

Firm

Nicholas Sullivan

Hillyer Legal, PLLC

Address

5335 Wisconsin Avenue NW

Suite 440

Washington, DC, 20015

US

Phone

Registered as

Registered patent attorney

Other patent attorneys in Washington, District of Columbia

Browse all Washington patent attorneys →

Frequently asked

Frequently asked about Nicholas J. Sullivan

  • Is Nicholas J. Sullivan a registered patent attorney?

    Yes. Nicholas J. Sullivan is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 81697). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Nicholas J. Sullivan located?

    Nicholas J. Sullivan's office is in Washington, District of Columbia (20015). Affiliated with Nicholas Sullivan.

  • What firm does Nicholas J. Sullivan work at?

    Nicholas J. Sullivan is listed as affiliated with Nicholas Sullivan on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Nicholas J. Sullivan?

    Nicholas J. Sullivan's office phone (per the USPTO public roster) is 202-686-2884. 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.

build 4315ed5 · 2026-05-22 19:19 EDT