Registered patent attorney
Zhengyu Feng
Firm
BANNER WITCOFF
BANNER WITCOFF
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 Zhengyu Feng
Is Zhengyu Feng a registered patent attorney?
Yes. Zhengyu Feng is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 66816). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Zhengyu Feng located?
Zhengyu Feng's office is in Washington, District of Columbia (20005). Affiliated with BANNER WITCOFF.
What firm does Zhengyu Feng work at?
Zhengyu Feng is listed as affiliated with BANNER WITCOFF on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Zhengyu Feng?
Zhengyu Feng's office phone (per the USPTO public roster) is 202-824-3315. 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.