Registered patent attorney

Alexander Kappner

USPTO Reg. 81630

Firm

DO & CO Los Angeles, Inc.

Address

4000 Redondo Beach Avenue

Suite 101

Redondo Beach, CA, 90278

US

Phone

Registered as

Registered patent attorney

Other patent attorneys in Redondo Beach, California

Browse all Redondo Beach patent attorneys →

Frequently asked

Frequently asked about Alexander Kappner

  • Is Alexander Kappner a registered patent attorney?

    Yes. Alexander Kappner is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 81630). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Alexander Kappner located?

    Alexander Kappner's office is in Redondo Beach, California (90278). Affiliated with DO & CO Los Angeles, Inc..

  • What firm does Alexander Kappner work at?

    Alexander Kappner is listed as affiliated with DO & CO Los Angeles, Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Alexander Kappner?

    Alexander Kappner's office phone (per the USPTO public roster) is 310-800-7121. 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 15:50 EDT