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:
Mar. 23, 2004
Filed:
Nov. 13, 2001
Thomas F. Guarr, Holland, MI (US);
Kathy E. Roberts, East Grand Rapids, MI (US);
Rongguang Lin, Holland, MI (US);
Kelvin L. Baumann, Holland, MI (US);
David A. Theiste, Byron Center, MI (US);
Punam Giri, Holland, MI (US);
Elizabeth M. Sanford, Holland, MI (US);
Gentex Corporation, Zeeland, MI (US);
Abstract
An electrochromic medium for use in an electrochromic device comprising: at least one solvent; an anodic electroactive material; a cathodic electroactive material; wherein at least one of the anodic and cathodic electroactive materials is electrochromic; and wherein at least one of the anodic and cathodic electroactive materials is associated with a diffusion coefficient controlling moiety which serves to lower the diffusion coefficient of the associated material relative to the same without the diffusion coefficient controlling moiety.