Registered patent attorney

Leonard Stewart

USPTO Reg. 66440

Firm

Caterpillar Inc.

Address

100 N. E. Adams Street

AH - 9510

Peoria, IL, 61629

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about Leonard Stewart

  • Is Leonard Stewart a registered patent attorney?

    Yes. Leonard Stewart is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 66440). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Leonard Stewart located?

    Leonard Stewart's office is in Peoria, Illinois (61629). Affiliated with Caterpillar Inc..

  • What firm does Leonard Stewart work at?

    Leonard Stewart is listed as affiliated with Caterpillar Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Leonard Stewart?

    Leonard Stewart's office phone (per the USPTO public roster) is 309-494-4176. 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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