Registered patent attorney

John J Cassingham

USPTO Reg. 34135

Firm

Bio-Rad Laboratories INC

Address

1000 Alfred Nobel Drive

Hercules, CA, 94547

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about John J Cassingham

  • Is John J Cassingham a registered patent attorney?

    Yes. John J Cassingham is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 34135). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is John J Cassingham located?

    John J Cassingham's office is in Hercules, California (94547). Affiliated with Bio-Rad Laboratories INC.

  • What firm does John J Cassingham work at?

    John J Cassingham is listed as affiliated with Bio-Rad Laboratories INC on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact John J Cassingham?

    John J Cassingham's office phone (per the USPTO public roster) is 510-741-6092. 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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