Registered patent agent

Arthur C. Chang

USPTO Reg. 77667

Address

5405 Alton Pkwy 5A221

Irvine, CA, 92604

US

Phone

Registered as

Registered patent agent

Other patent attorneys in Irvine, California

Browse all Irvine patent attorneys →

Frequently asked

Frequently asked about Arthur C. Chang

  • Is Arthur C. Chang a registered patent attorney?

    Arthur C. Chang is a registered patent agent (USPTO Registration Number 77667). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.

  • Where is Arthur C. Chang located?

    Arthur C. Chang's office is in Irvine, California (92604).

  • How do I contact Arthur C. Chang?

    Arthur C. Chang's office phone (per the USPTO public roster) is 213-840-1422. 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 17:54 EDT