Registered patent agent

Yixue Du

USPTO Reg. 75581

Firm

Park, Vaughan, Fleming & Dowler, LLp

Address

2800 5th Street, Suite 110

Davis, CA, 95618

US

Phone

Registered as

Registered patent agent

Other patent attorneys in Davis, California

Browse all Davis patent attorneys →

Frequently asked

Frequently asked about Yixue Du

  • Is Yixue Du a registered patent attorney?

    Yixue Du is a registered patent agent (USPTO Registration Number 75581). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.

  • Where is Yixue Du located?

    Yixue Du's office is in Davis, California (95618). Affiliated with Park, Vaughan, Fleming & Dowler, LLp.

  • What firm does Yixue Du work at?

    Yixue Du is listed as affiliated with Park, Vaughan, Fleming & Dowler, LLp on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Yixue Du?

    Yixue Du's office phone (per the USPTO public roster) is 530-204-4044. 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 17:15 EDT