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. 29, 1996
Filed:
Feb. 07, 1995
Applicant:
Inventors:
Lothar Willms, Hillscheid, DE;
Stephen Lacchein, Hofheim am Taunus, DE;
Gunter Schlegel, Liederbach, DE;
Heinz Kehne, Hofheim am Taunus, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
544213 ; 544211 ; 544210 ; 544208 ; 544205 ; 544206 ; 544199 ; 544197 ; 544332 ; 544323 ; 544321 ; 544320 ;
Abstract
Process for the preparation of sulfonylureas Herbicidal sulfonylureas of the formula I, ##STR1## in which X is --O--, --0--NR.sup.2 -- or --SO.sub.2 --NR.sup.2 --, Y is --N-- or CH,