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:
Feb. 23, 1999
Filed:
May. 19, 1997
Applicant:
Inventors:
Ralf Pfirmann, Griesheim, DE;
Theodor Papenfuhs, Frankfurt, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560-8 ; 560-9 ; 560 18 ; 560 19 ; 560 45 ; 560 46 ; 560 47 ; 560 55 ; 560 64 ; 560 65 ; 560 67 ; 560 76 ; 560 83 ; 560 96 ; 560100 ; 560102 ; 560103 ;
Abstract
The present invention relates to a process for the preparation of compounds of the formula (1)