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:
Oct. 02, 1990
Filed:
Oct. 05, 1988
Applicant:
Inventor:
Hulya Demiryont, Dearborn, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350357 ;
Abstract
This specification teaches a method for maintaining the electrochromic activity of an electrochromic material positioned between electrodes of an electrochromic device. The method disclosed for maintaining the electrochromic activity of the electrochromic material comprises applying a voltage across the electrodes of such level so to maintain an absolute single polarity charge abundance in the electrochromic material sufficient to keep it in an electrochromic state.