Registered patent attorney
Hajime Sakai
Firm
Amster Rothstein & Ebenstien LLP
Address
405 Lexington Avenue
Floor 48
New York, NY, 10174
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Hajime Sakai
Is Hajime Sakai a registered patent attorney?
Yes. Hajime Sakai is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 69386). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Hajime Sakai located?
Hajime Sakai's office is in New York, New York (10174). Affiliated with Amster Rothstein & Ebenstien LLP.
What firm does Hajime Sakai work at?
Hajime Sakai is listed as affiliated with Amster Rothstein & Ebenstien LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Hajime Sakai?
Hajime Sakai's office phone (per the USPTO public roster) is 212-336-8124. 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.