Registered patent agent

Isaac F Liu

USPTO Reg. 54640

Firm

Huanhoo LLC

Address

5007 Miramar Ave

San Jose, CA, 95129

US

Phone

Registered as

Registered patent agent

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Frequently asked

Frequently asked about Isaac F Liu

  • Is Isaac F Liu a registered patent attorney?

    Isaac F Liu is a registered patent agent (USPTO Registration Number 54640). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.

  • Where is Isaac F Liu located?

    Isaac F Liu's office is in San Jose, California (95129). Affiliated with Huanhoo LLC.

  • What firm does Isaac F Liu work at?

    Isaac F Liu is listed as affiliated with Huanhoo LLC on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Isaac F Liu?

    Isaac F Liu's office phone (per the USPTO public roster) is 408-655-7386. 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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