Registered patent attorney
Hung P Chang
Firm
Play First, Inc.
Address
160 Spear St., Ste. 1300
San Francisco, CA, 94105
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Hung P Chang
Is Hung P Chang a registered patent attorney?
Yes. Hung P Chang is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 58711). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Hung P Chang located?
Hung P Chang's office is in San Francisco, California (94105). Affiliated with Play First, Inc..
What firm does Hung P Chang work at?
Hung P Chang is listed as affiliated with Play First, Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Hung P Chang?
Hung P Chang's office phone (per the USPTO public roster) is 415-341-7262. 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.