Registered patent agent
Mark Sgantzos
Firm
SGAN Patent Service
Address
309 38th Road
Douglaston, NY, 11363
US
Phone
Registered as
Registered patent agent
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Frequently asked about Mark Sgantzos
Is Mark Sgantzos a registered patent attorney?
Mark Sgantzos is a registered patent agent (USPTO Registration Number 41427). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Mark Sgantzos located?
Mark Sgantzos's office is in Douglaston, New York (11363). Affiliated with SGAN Patent Service.
What firm does Mark Sgantzos work at?
Mark Sgantzos is listed as affiliated with SGAN Patent Service on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Mark Sgantzos?
Mark Sgantzos's office phone (per the USPTO public roster) is 718-352-1088. 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.