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:
Jun. 18, 2013
Filed:
Jul. 17, 2007
Applicants:
Lars Lietzau, Darmstadt, DE;
Markus Czanta, Darmstadt, DE;
Atsutaka Manabe, Bensheim, DE;
Inventors:
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/00 (2006.01); C09K 19/02 (2006.01); C09K 19/06 (2006.01); C09K 19/52 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to mesogenic tetrahydropyran compounds having at least four rings, of the formula I in which R, A, A, X, L, L, m and n have the meanings indicated in Claim, and to a process for the preparation thereof, to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.