Registered patent attorney

Calmann J Clements

USPTO Reg. 66910

Firm

Haynes and Boone, LLP

Address

2505 N. Plano Road

Suite 4000

Richardson, TX, 75082

US

Phone

Registered as

Registered patent attorney

Other attorneys at Haynes and Boone, LLP

Other patent attorneys in Richardson, Texas

Browse all Richardson patent attorneys →

Frequently asked

Frequently asked about Calmann J Clements

  • Is Calmann J Clements a registered patent attorney?

    Yes. Calmann J Clements is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 66910). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Calmann J Clements located?

    Calmann J Clements's office is in Richardson, Texas (75082). Affiliated with Haynes and Boone, LLP.

  • What firm does Calmann J Clements work at?

    Calmann J Clements is listed as affiliated with Haynes and Boone, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Calmann J Clements?

    Calmann J Clements's office phone (per the USPTO public roster) is 972-734-6400. 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 4315ed5 · 2026-05-22 13:49 EDT