Registered patent attorney
John Colby Van Horn
Address
320 Macon St.
Apt. 3
Brooklyn, NY, 11216
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about John Colby Van Horn
Is John Colby Van Horn a registered patent attorney?
Yes. John Colby Van Horn is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 68834). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is John Colby Van Horn located?
John Colby Van Horn's office is in Brooklyn, New York (11216).
How do I contact John Colby Van Horn?
John Colby Van Horn's office phone (per the USPTO public roster) is 802-598-1152. 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.