Registered patent agent
Hak J Chang
Firm
Capella Biosciences, Inc.
Address
550 Hamilton Ave., Suite 230
Palo Alto, CA, 94301
US
Phone
Registered as
Registered patent agent
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Frequently asked
Frequently asked about Hak J Chang
Is Hak J Chang a registered patent attorney?
Hak J Chang is a registered patent agent (USPTO Registration Number 56319). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Hak J Chang located?
Hak J Chang's office is in Palo Alto, California (94301). Affiliated with Capella Biosciences, Inc..
What firm does Hak J Chang work at?
Hak J Chang is listed as affiliated with Capella Biosciences, Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Hak J Chang?
Hak J Chang's office phone (per the USPTO public roster) is 617-308-5006. 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.