Registered patent attorney
Hanjun Liu
Address
640 John Carlyle Street
418
Alexandria, VA, 22314
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Hanjun Liu
Is Hanjun Liu a registered patent attorney?
Yes. Hanjun Liu is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 81299). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Hanjun Liu located?
Hanjun Liu's office is in Alexandria, Virginia (22314).
How do I contact Hanjun Liu?
Hanjun Liu's office phone (per the USPTO public roster) is 917-756-2354. 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.