John E. Armstrong
Patent agent, USPTO registration number 37767, status Active.
- Firm
- DuPont CO
- Location
- Newark, DE
- On the USPTO roster since
- before May 2006
John E. Armstrong is a USPTO-registered patent agent (registration number 37767) at DuPont CO, in Newark, DE. The registration is active on the current USPTO roster, and John E. Armstrong has been listed on the roster since before May 2006.
DuPont CO has 4 registered patent practitioners on the roster (2 patent attorneys and 2 patent agents), so John E. Armstrong works alongside 3 other registered practitioners there.
Newark, DE has 33 registered patent practitioners in all: 17 patent attorneys and 16 patent agents.
Other registered practitioners in Newark, DE
- Andrea T. Slater — Patent agent, Reg. No. 54455, Siemens Healthcare Diagnostics
- Ying Song — Patent agent, Reg. No. 54460, DuPont Crop Protection
- Charlene Gross Sternberg — Patent agent, Reg. No. 66664, FMC Corporation
- David Andrew Travis — Patent agent, Reg. No. 78790, FMC Corporation
- Keith A. Walter — Patent attorney, Reg. No. 55710, Golo, LLC
- Allan M. Wheatcraft — Patent attorney, Reg. No. 36307, W.L. Gore and Associates, Inc.
- Bradley J. Yops — Patent attorney, Reg. No. 61608, University of Delaware Research and Graduate Studies
- Cheng Zhang — Patent agent, Reg. No. 65707
All patent attorneys and agents in Newark, DE
Patent firms in Delaware · Practitioners by state
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