Registered patent attorney

Philip A DeFriend

USPTO Reg. 56336

Firm

Philip A. DeFriend Attorney At Law

Address

P.O. Box 3278

Pagosa Springs, CO, 81147

US

Phone

Registered as

Registered patent attorney

Frequently asked

Frequently asked about Philip A DeFriend

  • Is Philip A DeFriend a registered patent attorney?

    Yes. Philip A DeFriend is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 56336). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Philip A DeFriend located?

    Philip A DeFriend's office is in Pagosa Springs, Colorado (81147). Affiliated with Philip A. DeFriend Attorney At Law.

  • What firm does Philip A DeFriend work at?

    Philip A DeFriend is listed as affiliated with Philip A. DeFriend Attorney At Law on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Philip A DeFriend?

    Philip A DeFriend's office phone (per the USPTO public roster) is 970-946-3250. 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 19:52 EDT