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Registered patent attorney
Jihan Joo
Firm
Banner Witcoff Ltd.
Address
1100 13th St NW
Suite 1200
Washington, DC, 20005
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Jihan Joo
Is Jihan Joo a registered patent attorney?
Yes. Jihan Joo is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 77319). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Jihan Joo located?
Jihan Joo's office is in Washington, District of Columbia (20005). Affiliated with Banner Witcoff Ltd..
What firm does Jihan Joo work at?
Jihan Joo is listed as affiliated with Banner Witcoff Ltd. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Jihan Joo?
Jihan Joo's office phone (per the USPTO public roster) is 202-824-3180. 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.