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:
Mar. 04, 2003
Filed:
May. 21, 2001
Applicant:
Inventors:
Jyh-Hong Eric Chen, Media, PA (US);
Tyau-Jeen Lin, Chadds Ford, PA (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 7/24 ;
U.S. Cl.
CPC ...
H01J 7/24 ;
Abstract
A cathode assembly is described for use in the creation of a discharge plasma. The cathode comprises a plurality of electrically conductive hollow plasma generating cells in a cylindrically-shaped array, the cells being electrically connected to each other. The plasma generated can be used to modify surface properties of substrates, such as films, fibers, particles and other articles, particularly cylindrically shaped articles.