Registered patent attorney

Mark Costello

USPTO Reg. 31342

Address

5602 Rain Lily Court

Sarasota, FL, 34238

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about Mark Costello

  • Is Mark Costello a registered patent attorney?

    Yes. Mark Costello is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 31342). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Mark Costello located?

    Mark Costello's office is in Sarasota, Florida (34238).

  • How do I contact Mark Costello?

    Mark Costello's office phone (per the USPTO public roster) is 203-216-2937. 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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