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. 14, 2007
Filed:
May. 19, 2004
Applicants:
Harald Hirschmann, Darmstadt, DE;
Kevin Adlem, Bournemouth, GB;
Patricia Saxton, Hampshire, GB;
Mark John Goulding, Hampshire, GB;
Martin Heeney, Southampton, GB;
Inventors:
Harald Hirschmann, Darmstadt, DE;
Kevin Adlem, Bournemouth, GB;
Patricia Saxton, Hampshire, GB;
Mark John Goulding, Hampshire, GB;
Martin Heeney, Southampton, GB;
Assignee:
Merck Patent GmbH, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 19/52 (2006.01); C09K 19/06 (2006.01); C07C 255/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
Tolane compounds of the formula I wherein R, R, L, Land Lare as defined herein, are described. Further described are liquid-crystalline media comprising at least one tolane compound of formula I as well as liquid-crystal display elements containing such a liquid-crystalline medium.