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:
Aug. 19, 2003
Filed:
Dec. 11, 2000
Applicant:
Inventors:
Richard Buchecker, Zürich, CH;
Zoubair Mohammed Cherkaoui, Allschwil, CH;
Klaus Schmitt, Lörrach, DE;
Assignee:
Rolic AG, Zug, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 3/326 ; C09K 1/958 ;
U.S. Cl.
CPC ...
C07C 3/326 ; C09K 1/958 ;
Abstract
Optically active butane-1,2,3,4-tetraol derivatives of formula (I). The compounds may be used as doping agents for liquid crystals for a wide range of applications, such as solid state cholesteric filters for projection displays, circular polarizers, and optical filters.
Buchecker, Richard. (2003). Optically active compounds (U.S. Patent No. 6607677). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6607677
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile