Registered patent attorney
Xun Liu
Firm
Williams & Connolly LLP
Address
680 Maine Ave. S.W.
Washington, DC, 20024
US
Phone
Registered as
Registered patent attorney
Other attorneys at Williams & Connolly LLP
- David I. BerlUSPTO Reg. 72751 · Washington, DC
- Jessamyn S BernikerUSPTO Reg. 72328 · Washington, DC
- Stanley E FisherUSPTO Reg. 55820 · Washington, DC
- Richard HildrethUSPTO Reg. 80415 · Washington, DC
- David M KrinskyUSPTO Reg. 72339 · Washington, DC
- Mark H LyonUSPTO Reg. 62532 · Washington, DC
- Shaun P. MahaffyUSPTO Reg. 75534 · Washington, DC
- Ben V. PicozziUSPTO Reg. 76862 · Washington, DC
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 Xun Liu
Is Xun Liu a registered patent attorney?
Yes. Xun Liu is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 68815). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Xun Liu located?
Xun Liu's office is in Washington, District of Columbia (20024). Affiliated with Williams & Connolly LLP.
What firm does Xun Liu work at?
Xun Liu is listed as affiliated with Williams & Connolly LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Xun Liu?
Xun Liu's office phone (per the USPTO public roster) is 202-434-5706. 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.