Registered patent attorney
Xianfeng Xu
Firm
Foley Hoag LLP
Address
1717 K Street NW
Washington, DC, 20006
US
Phone
Registered as
Registered patent attorney
Other attorneys at Foley Hoag LLP
- Ila S. AnandUSPTO Reg. 80127 · Boston, MA
- Alexander M BerneUSPTO Reg. 78493 · New York, NY
- Alexander J. ChatterleyUSPTO Reg. 76844 · Boston, MA
- Tesia V. ChciukUSPTO Reg. 81257 · New York, NY
- Philip S ChoiUSPTO Reg. 65244 · Boston, MA
- Stephen B DeutschUSPTO Reg. 46663 · Boston, MA
- Samantha N. DevenportUSPTO Reg. 80234 · Boston, MA
- James M FlahertyUSPTO Reg. 52895 · Boston, MA
Other patent attorneys in Washington, District of Columbia
- Alisa S AbbottBanner Witcoff
- Ahmed Abdel-RahmanPillsbury Winthrop Shaw Pittman LLP
- Margaret A AbernathyBaker & Hostetler LLP
- Michael T. AbramsonJordan IP Law
- Khadija Abdulkadir AbuHoward University School of Law
- Deepa AcharyaQuinn Emanuel UrQuhart & Sullivan LLP
- Canek AcostaMayer Brown LLP
- Stephanie N. AdamakosPaul Hastings LLP
Frequently asked
Frequently asked about Xianfeng Xu
Is Xianfeng Xu a registered patent attorney?
Yes. Xianfeng Xu is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 68376). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Xianfeng Xu located?
Xianfeng Xu's office is in Washington, District of Columbia (20006). Affiliated with Foley Hoag LLP.
What firm does Xianfeng Xu work at?
Xianfeng Xu is listed as affiliated with Foley Hoag LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Xianfeng Xu?
Xianfeng Xu's office phone (per the USPTO public roster) is 202-261-7321. 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.