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. 27, 2001
Filed:
Mar. 31, 1999
Applicant:
Inventors:
Horst Berneth, Leverkusen, DE;
Uwe Claussen, Leverkusen, DE;
Dietrich Haarer, Bayreuth, DE;
Jochen Schaller, Schwarzenbach, DE;
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 9/02 ;
U.S. Cl.
CPC ...
C09K 9/02 ;
Abstract
Electrochromic display devices, whose plates having conductive coatings are subdivided into segments which are electrically separated from one another, can be contacted individually and, between the plates, contain a solvent, specific electrochromic substances and optionally conductive salts, are distinguished by excellent edge definition and high contrast.