Registered patent attorney
Felix T Tsai
Address
583 Hayes Street, #2
San Francico, CA, 94102
US
Phone
Registered as
Registered patent attorney
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Frequently asked about Felix T Tsai
Is Felix T Tsai a registered patent attorney?
Yes. Felix T Tsai is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 69179). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Felix T Tsai located?
Felix T Tsai's office is in San Francico, California (94102).
How do I contact Felix T Tsai?
Felix T Tsai's office phone (per the USPTO public roster) is 650-888-3574. 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.