Registered patent attorney

Duncan Stark

USPTO Reg. 69887

Firm

thyssenkrupp North America, LLC

Address

9450 SW Gemini Dr.

Suite 28424

Beaverton, OR, 97008

US

Phone

Registered as

Registered patent attorney

Other patent attorneys in Beaverton, Oregon

Browse all Beaverton patent attorneys →

Frequently asked

Frequently asked about Duncan Stark

  • Is Duncan Stark a registered patent attorney?

    Yes. Duncan Stark is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 69887). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Duncan Stark located?

    Duncan Stark's office is in Beaverton, Oregon (97008). Affiliated with thyssenkrupp North America, LLC.

  • What firm does Duncan Stark work at?

    Duncan Stark is listed as affiliated with thyssenkrupp North America, LLC on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Duncan Stark?

    Duncan Stark's office phone (per the USPTO public roster) is 206-321-8731. 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 15:19 EDT