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:
Apr. 02, 2002
Filed:
Jan. 21, 2000
Applicant:
Inventor:
Hans-Rolf Dübal, Eltville, DE;
Assignee:
Aventis Research & Technologies GmbH, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/942 ; C09K 1/938 ; G06K 1/9067 ;
U.S. Cl.
CPC ...
C09K 1/942 ; C09K 1/938 ; G06K 1/9067 ;
Abstract
The present invention describes a chip card having a ferroelectric liquid-crystal display containing a ferroelectric liquid-crystal layer, in which the liquid-crystal layer consists of a mixture of low-molecular-weight (60 to 95% by weight) and polymeric or oligomeric liquid crystals.
Dübal, Hans-Rolf. (2002). Chip card with bistable display (U.S. Patent No. 6365238). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6365238
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile