Registered patent attorney

David J Hrina

USPTO Reg. 50566

Firm

Brennan, Manna & Diamond, LLC

Address

75 E. Market Street

Akron, OH, 44308

US

Phone

Registered as

Registered patent attorney

Other patent attorneys in Akron, Ohio

Browse all Akron patent attorneys →

Frequently asked

Frequently asked about David J Hrina

  • Is David J Hrina a registered patent attorney?

    Yes. David J Hrina is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 50566). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is David J Hrina located?

    David J Hrina's office is in Akron, Ohio (44308). Affiliated with Brennan, Manna & Diamond, LLC.

  • What firm does David J Hrina work at?

    David J Hrina is listed as affiliated with Brennan, Manna & Diamond, LLC on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact David J Hrina?

    David J Hrina's office phone (per the USPTO public roster) is 330-436-8910. 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.

build 339e658 · 2026-05-23 16:16 EDT