The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2013
Filed:
Feb. 26, 2010
Steven Dale Ittel, Wilmington, DE (US);
Gillian Althea Maria Reynolds, Wilmington, DE (US);
Ming Zheng, Wilmington, DE (US);
Steven Dale Ittel, Wilmington, DE (US);
Gillian Althea Maria Reynolds, Wilmington, DE (US);
Ming Zheng, Wilmington, DE (US);
E I du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
The disclosure relates to processes for the electrochemical modification of electron emitting materials such as carbon nanotubes. The processes improve the oxidation resistance of the electron emitting materials when they are fired in an oxygen-containing atmosphere such as air. The disclosure also relates to the preparation of cathodes or cathode assemblies, for use in a field emission device, wherein are contained an electron field emitter made from such electron emitting material.