Registered patent attorney

Helen Yiea Trac

USPTO Reg. 65250

Address

1236 7th Ave

San Francisco, CA, 94122

US

Phone

Registered as

Registered patent attorney

Other patent attorneys in San Francisco, California

Browse all San Francisco patent attorneys →

Frequently asked

Frequently asked about Helen Yiea Trac

  • Is Helen Yiea Trac a registered patent attorney?

    Yes. Helen Yiea Trac is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 65250). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Helen Yiea Trac located?

    Helen Yiea Trac's office is in San Francisco, California (94122).

  • How do I contact Helen Yiea Trac?

    Helen Yiea Trac's office phone (per the USPTO public roster) is 248-495-0021. 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 20:45 EDT