Registered patent attorney

John M Harrington

USPTO Reg. 25592

Firm

Johnson, Marcou & Isaacs, LLC

Address

27 City Square

Suite 1

Hoschton, GA, 30548

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about John M Harrington

  • Is John M Harrington a registered patent attorney?

    Yes. John M Harrington is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 25592). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is John M Harrington located?

    John M Harrington's office is in Hoschton, Georgia (30548). Affiliated with Johnson, Marcou & Isaacs, LLC.

  • What firm does John M Harrington work at?

    John M Harrington is listed as affiliated with Johnson, Marcou & Isaacs, LLC on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact John M Harrington?

    John M Harrington's office phone (per the USPTO public roster) is 704-200-2601. 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.

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