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:
Jul. 12, 1983
Filed:
Feb. 19, 1981
Applicant:
Inventors:
Robert D Giglia, Rye, NY (US);
Gottfried Haacke, New Canaan, CT (US);
Assignee:
American Cyanamid Company, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350357 ;
Abstract
An electrochromic device comprises a layer of electrochromic tungsten oxide in contact with an ion-conductive insulating layer of codeposited mixture of SiO and Cr.sub.2 O.sub.3 between electrodes of reversible polarity for alternately coloring and erasing the electrochromic layer by alternate application of current in opposite directions. The mixture of components in the ion-conductive layer improves cycling life of the device.