Registered patent attorney

Richard A Wilhelm

USPTO Reg. 48786

Firm

Essential Patents Group, LLP

Address

5 Centerpointe Drive

Suite 400

Lake Oswego, OR, 97035

US

Phone

Registered as

Registered patent attorney

Other attorneys at Essential Patents Group, LLP

Other patent attorneys in Lake Oswego, Oregon

Browse all Lake Oswego patent attorneys →

Frequently asked

Frequently asked about Richard A Wilhelm

  • Is Richard A Wilhelm a registered patent attorney?

    Yes. Richard A Wilhelm is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 48786). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Richard A Wilhelm located?

    Richard A Wilhelm's office is in Lake Oswego, Oregon (97035). Affiliated with Essential Patents Group, LLP.

  • What firm does Richard A Wilhelm work at?

    Richard A Wilhelm is listed as affiliated with Essential Patents Group, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Richard A Wilhelm?

    Richard A Wilhelm's office phone (per the USPTO public roster) is 503-968-8233. 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 14:41 EDT