Registered patent attorney

Sophia S Chang

USPTO Reg. 69407

Firm

University of California, San Francisco

Address

185 Berry Street

Suite 4603

San Francisco, CA, 94107

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about Sophia S Chang

  • Is Sophia S Chang a registered patent attorney?

    Yes. Sophia S Chang is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 69407). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Sophia S Chang located?

    Sophia S Chang's office is in San Francisco, California (94107). Affiliated with University of California, San Francisco.

  • What firm does Sophia S Chang work at?

    Sophia S Chang is listed as affiliated with University of California, San Francisco on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Sophia S Chang?

    Sophia S Chang's office phone (per the USPTO public roster) is 415-514-6204. 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.

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