Registered patent agent
Tong Li
Firm
E. I. duPont de Nemours and Company
Address
200 Powder Mill Road
Building 323, Room 315B
Wilmington, DE, 19880-0323
US
Phone
Registered as
Registered patent agent
Other patent attorneys in Wilmington, Delaware
- Robert Lynn LaPointe Andersonc\o Hon. Mary Pat Thynge
- Lucia Teixeira AntunesE.I. duPont de Nemours and Company
- Gwilym J O AttwellFish & Richardson P.C.
- Brian S. AuerbachBarnes & Thornburg LLP
- Bradley A. AulickE. I. du Pont de Nemours and Company
- George G BallasInterDigital Holdings, Inc.
- Lori Yanisko BeardellDuPont Legal
- Richard M BeckUSPTO Reg. 22580
Frequently asked
Frequently asked about Tong Li
Is Tong Li a registered patent attorney?
Tong Li is a registered patent agent (USPTO Registration Number 47748). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Tong Li located?
Tong Li's office is in Wilmington, Delaware (19880-0323). Affiliated with E. I. duPont de Nemours and Company.
What firm does Tong Li work at?
Tong Li is listed as affiliated with E. I. duPont de Nemours and Company on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Tong Li?
Tong Li's office phone (per the USPTO public roster) is 302-695-2550. 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.