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:
Oct. 20, 2009
Filed:
Jul. 23, 2007
Applicants:
Michael Heckmeier, Bensheim, DE;
Peer Kirsch, Darmstadt, DE;
Joachim Krause, Dieburg, DE;
Alexander Hahn, Rüsselsheim, DE;
Andreas Ruhl, Roβdorf, DE;
Inventors:
Michael Heckmeier, Bensheim, DE;
Peer Kirsch, Darmstadt, DE;
Joachim Krause, Dieburg, DE;
Alexander Hahn, Rüsselsheim, DE;
Andreas Ruhl, Roβdorf, DE;
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/30 (2006.01); C09K 19/32 (2006.01); C09K 19/34 (2006.01); C09K 19/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
Liquid-crystalline compounds of the formula I in whichR, A, A, Z, Z, X, a, b, L, Land Lare as defined herein, and 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.