Registered patent agent
Randall W Chang
Firm
RC Patent Services
Address
43 Arroyo Way
San Francisco, CA, 94127
US
Phone
Registered as
Registered patent agent
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Frequently asked
Frequently asked about Randall W Chang
Is Randall W Chang a registered patent attorney?
Randall W Chang is a registered patent agent (USPTO Registration Number 40946). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Randall W Chang located?
Randall W Chang's office is in San Francisco, California (94127). Affiliated with RC Patent Services.
What firm does Randall W Chang work at?
Randall W Chang is listed as affiliated with RC Patent Services on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Randall W Chang?
Randall W Chang's office phone (per the USPTO public roster) is 415-609-8591. 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.