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:
Jul. 31, 1990
Filed:
Dec. 14, 1988
Applicant:
Inventors:
Ludwig Schroder, Ingelheim, DE;
Werner Stransky, Gau-Algesheim, DE;
Rudolf Mengel, Ingelheim, DE;
Erich Raddatz, Cali, CO;
Sigmund Lust, Darmstadt, DE;
Gerbert Linden, Ingelheim, DE;
Gerhart Schneider, Muhltal, DE;
Assignee:
Shell Internationale Research Maatschappij B.V., The Hague, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; A01N / ; C07D / ;
U.S. Cl.
CPC ...
71 92 ; 546 15 ; 546278 ; 548311 ; 548313 ; 548314 ;
Abstract
Novel cycloalkane-5.dbd.-spiro-hydantoins of formula ##STR1## wherein A is selected from the group consisting of ##STR2## and the remaining substituents are defined below having strong, selective herbicidal activity and novel intermediates and a process for their preparation.