Registered patent agent

Michael Costello-Caulkins

USPTO Reg. 80346

Address

2336 Howard Avenue

San Carlos, CA, 94070

US

Phone

Registered as

Registered patent agent

Other patent attorneys in San Carlos, California

Browse all San Carlos patent attorneys →

Frequently asked

Frequently asked about Michael Costello-Caulkins

  • Is Michael Costello-Caulkins a registered patent attorney?

    Michael Costello-Caulkins is a registered patent agent (USPTO Registration Number 80346). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.

  • Where is Michael Costello-Caulkins located?

    Michael Costello-Caulkins's office is in San Carlos, California (94070).

  • How do I contact Michael Costello-Caulkins?

    Michael Costello-Caulkins's office phone (per the USPTO public roster) is 240-464-3553. 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 17:54 EDT