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:
May. 11, 1976
Filed:
Oct. 25, 1973
Applicant:
Inventors:
Horst Witzke, Princeton, NJ (US);
Matthew D Miller, Cranbury, NJ (US);
Assignee:
Optel Corporation, Princeton, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3501 / ; 136137 ;
Abstract
An electrochromic device comprises, in a layered structure, a first electrode, an electrochromic material, an electrolyte and a back electrode which is of a material different than said first electrode. The device is characterized as having a nonlinear voltage response, a well defined threshhold, and an internal electromotive force which is uniquely determined by the color state of the device.