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. 05, 1994
Filed:
Aug. 06, 1993
Applicant:
Inventors:
Costin Rentzea, Heidelberg, DE;
Albrecht Harreus, Ludwigshafen, DE;
Andreas Landes, Limburgerhof, DE;
Helmut Walter, Obrigheim, DE;
Wilhelm Rademacher, Limburgerhof, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; C07D / ;
U.S. Cl.
CPC ...
504235 ; 544383 ;
Abstract
Piperazine-2,3-diones of the formula I ##STR1## where R.sup.1 and R.sup.2 are identical or different and each is alkyl, alkenyl or alkynyl, where these groups may carry from one to five halogen atoms;