Registered patent agent
Andrew K Birchenall
Firm
E I DuPont de Nemours
Address
200 Powder Mill Rd
Wilmington, DE, 19880
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 Andrew K Birchenall
Is Andrew K Birchenall a registered patent attorney?
Andrew K Birchenall is a registered patent agent (USPTO Registration Number 52621). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Andrew K Birchenall located?
Andrew K Birchenall's office is in Wilmington, Delaware (19880). Affiliated with E I DuPont de Nemours.
What firm does Andrew K Birchenall work at?
Andrew K Birchenall is listed as affiliated with E I DuPont de Nemours on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Andrew K Birchenall?
Andrew K Birchenall's office phone (per the USPTO public roster) is 302-695-7991. 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.