Limited recognition

Yangfan Xu

USPTO Reg. 800092

Firm

Amster Rothstein & Ebenstein LLP

Address

405 Lexington Avenue, Floor 48

New York, NY, 10174

US

Phone

Registered as

Limited recognition

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Frequently asked

Frequently asked about Yangfan Xu

  • Is Yangfan Xu a registered patent attorney?

    Yangfan Xu is registered with the United States Patent and Trademark Office under Registration Number 800092 as a USPTO-registered practitioner.

  • Where is Yangfan Xu located?

    Yangfan Xu's office is in New York, New York (10174). Affiliated with Amster Rothstein & Ebenstein LLP.

  • What firm does Yangfan Xu work at?

    Yangfan Xu is listed as affiliated with Amster Rothstein & Ebenstein LLP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Yangfan Xu?

    Yangfan Xu's office phone (per the USPTO public roster) is 212-336-8000. 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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