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:
Aug. 20, 2002
Filed:
Apr. 07, 1999
Applicant:
Inventors:
John F. Sopko, Trafford, PA (US);
Michael O. Okoroafor, Export, PA (US);
Huawen Li, Delmont, PA (US);
George A. Neuman, Duluth, GA (US);
Assignee:
PPG Industries Ohio, Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 9/00 ;
U.S. Cl.
CPC ...
B32B 9/00 ;
Abstract
This invention relates to a two layers or more anti-static film coating deposited on a substrate. Selected layers of the films may have anti-static and/or electromagnetic properties. In one embodiment, the film farthest from the substrate has an index of refraction lower than the underlying film. In another embodiment, the surface of the film is roughened to provide a graded index of refraction.
Quick Actions:
Sopko, John. (2002). Conductive antireflective coatings and methods of producing same (U.S. Patent No. 6436541). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6436541
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile