Registered patent attorney

Jun Cheng

USPTO Reg. 75406

Firm

Crowell & Moring LLP

Address

300 N. LaSalle Drive

Suite 2500

Chicago, IL, 60654

US

Phone

Registered as

Registered patent attorney

Other attorneys at Crowell & Moring LLP

Other patent attorneys in Chicago, Illinois

Browse all Chicago patent attorneys →

Frequently asked

Frequently asked about Jun Cheng

  • Is Jun Cheng a registered patent attorney?

    Yes. Jun Cheng is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 75406). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Jun Cheng located?

    Jun Cheng's office is in Chicago, Illinois (60654). Affiliated with Crowell & Moring LLP.

  • What firm does Jun Cheng work at?

    Jun Cheng is listed as affiliated with Crowell & Moring LLP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Jun Cheng?

    Jun Cheng's office phone (per the USPTO public roster) is 312-840-3298. 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 17:09 EDT