Registered patent attorney

Phillip J Schieffer

USPTO Reg. 80903

Address

3408 Lake Knoll Drive

Northbrook, IL, 60062

US

Phone

Registered as

Registered patent attorney

Other patent attorneys in Northbrook, Illinois

Browse all Northbrook patent attorneys →

Frequently asked

Frequently asked about Phillip J Schieffer

  • Is Phillip J Schieffer a registered patent attorney?

    Yes. Phillip J Schieffer is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 80903). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Phillip J Schieffer located?

    Phillip J Schieffer's office is in Northbrook, Illinois (60062).

  • How do I contact Phillip J Schieffer?

    Phillip J Schieffer's office phone (per the USPTO public roster) is 715-579-3814. 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 14:31 EDT