Registered patent attorney

William CosnowskiJr

USPTO Reg. 42441

Firm

Delphi Corporation

Address

5825 Delphi Drive, M/C 480.410.254

Troy, MI, 48098-2815

US

Phone

Registered as

Registered patent attorney

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Frequently asked

Frequently asked about William Cosnowski

  • Is William Cosnowski a registered patent attorney?

    Yes. William Cosnowski is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 42441). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is William Cosnowski located?

    William Cosnowski's office is in Troy, Michigan (48098-2815). Affiliated with Delphi Corporation.

  • What firm does William Cosnowski work at?

    William Cosnowski is listed as affiliated with Delphi Corporation on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact William Cosnowski?

    William Cosnowski's office phone (per the USPTO public roster) is 248-813-3309. 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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