Registered patent attorney
Leonard Preston Diana
Firm
Fitzpatrick Cella Harper & Scinto
Address
1290 Avenue of the Americas
New York, NY, 10104-3800
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Leonard Preston Diana
Is Leonard Preston Diana a registered patent attorney?
Yes. Leonard Preston Diana is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 29296). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Leonard Preston Diana located?
Leonard Preston Diana's office is in New York, New York (10104-3800). Affiliated with Fitzpatrick Cella Harper & Scinto.
What firm does Leonard Preston Diana work at?
Leonard Preston Diana is listed as affiliated with Fitzpatrick Cella Harper & Scinto on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Leonard Preston Diana?
Leonard Preston Diana's office phone (per the USPTO public roster) is 212-218-2100. 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.