Registered patent attorney

David Francis Janci

USPTO Reg. 28620

Firm

USG CORP

Address

700 N Highway 45

Libertyville, IL, 60048

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about David Francis Janci

  • Is David Francis Janci a registered patent attorney?

    Yes. David Francis Janci is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 28620). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is David Francis Janci located?

    David Francis Janci's office is in Libertyville, Illinois (60048). Affiliated with USG CORP.

  • What firm does David Francis Janci work at?

    David Francis Janci is listed as affiliated with USG CORP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact David Francis Janci?

    David Francis Janci's office phone (per the USPTO public roster) is 847-970-5113. 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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