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. 17, 1997
Filed:
Jun. 06, 1995
Applicant:
Inventors:
Eike Poetsch, Muhltal, DE;
Volker Meyer, Gross-Zimmern, DE;
Ulrich Heywang, Darmstadt, DE;
Inge Stein, Erzhausen, DE;
Michael Schwarz, Bross-Gerau, DE;
Michael Kompter, Riedstadt, DE;
Assignee:
Merck Patent Gesellschaft Mit Beschrankter Haftung, Darmstadt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
546137 ; 568367 ; 568373 ;
Abstract
A process for preparing substituted 4-methylidenecinnamic acid derivatives of Formula (I). ##STR1## The variables are defined herein. The compounds of Formula (I) can be used, for example, as UV absorbers.