Registered patent attorney

Yizhou Liu

USPTO Reg. 74809

Firm

Calfee Halter & Griswold LLP

Address

1405 East Sixth Street

Cleveland, OH, 44114

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about Yizhou Liu

  • Is Yizhou Liu a registered patent attorney?

    Yes. Yizhou Liu is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 74809). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Yizhou Liu located?

    Yizhou Liu's office is in Cleveland, Ohio (44114). Affiliated with Calfee Halter & Griswold LLP.

  • What firm does Yizhou Liu work at?

    Yizhou Liu is listed as affiliated with Calfee Halter & Griswold LLP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Yizhou Liu?

    Yizhou Liu's office phone (per the USPTO public roster) is 216-622-8432. 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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