Andrew K. Birchenall
Patent agent, USPTO registration number 52621, status Active.
- Firm
- E I DuPont de Nemours
- Location
- Wilmington, DE
- On the USPTO roster since
- before May 2006
Andrew K. Birchenall is a USPTO-registered patent agent (registration number 52621) at E I DuPont de Nemours, in Wilmington, DE. The registration is active on the current USPTO roster, and Andrew K. Birchenall has been listed on the roster since before May 2006.
E I DuPont de Nemours has 2 registered patent practitioners on the roster (2 patent agents), so Andrew K. Birchenall works alongside 1 other registered practitioner there.
Wilmington, DE has 241 registered patent practitioners in all: 170 patent attorneys and 71 patent agents.
Other registered practitioners in Wilmington, DE
- Jonathon O. Narita — Patent agent, Reg. No. 53369, E I Du Pont de Nemours and Company
- Jamie T. Nguyen — Patent attorney, Reg. No. 64687, InterDigital
- Stephanie O'byrne — Patent attorney, Reg. No. 57837, Shaw Keller LLP
- Robert Patrick O'flynn O'brien — Patent attorney, Reg. No. 35629, Ashland INC
- Gerard M. O'rourke — Patent attorney, Reg. No. 39794, O'Rourke Law Office, LLC
- Robert M. Oakes — Patent attorney, Reg. No. 62189, Fish & Richardson P.C.
- Brian C. Oakes — Patent attorney, Reg. No. 41467, Tyco Technology Resources
- Joan T. Odell — Patent agent, Reg. No. 56870, DuPont Company
All patent attorneys and agents in Wilmington, DE
Patent firms in Delaware · Practitioners by state
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