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:
Sep. 11, 2001
Filed:
Sep. 19, 2000
Applicant:
Inventors:
Harlan J. Byker, Holland, MI (US);
Thomas F. Guarr, Holland, MI (US);
Derick D. Winkle, Zeeland, MI (US);
Assignee:
Gentex Corporation, Zeeland, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/15 ;
U.S. Cl.
CPC ...
G02F 1/15 ;
Abstract
Electrochromic compositions suitable for use in electrochromic media in electrochromic devices contain minimally two electrochromic compounds of the same redox type, whose redox potentials are greater than 30 mV. The lower redox potential electrochromic compound makes a large contribution to the absorbancy of the electrochromic medium despite being present in only minor concentration.