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. 21, 2023
Filed:
Aug. 09, 2019
Apjet, Inc., Morrisville, NC (US);
Gregory A. Roche, Durham, NC (US);
David W. Tyner, Benson, NC (US);
Carrie E. Cornelius, Durham, NC (US);
Joseph H. Cross, Raleigh, NC (US);
APJeT, Inc., Morrisville, NC (US);
Abstract
An atmospheric pressure plasma processing apparatus and method employing argon as a plasma gas in the absence of helium, including nanosecond pulse-powered electrodes having planar surfaces, and grounded electrodes having planar surfaces parallel to the surfaces of the powered electrodes and spaced-apart a chosen distance therefrom, forming plasma regions, are described. The absence of helium from the plasma discharge has been found not to affect the quality of the resulting plasma-polymerized coatings of the processed substrates.