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. 27, 2001
Filed:
Apr. 10, 1998
Applicant:
Inventors:
Guido Wäschenbach, Schriesheim, DE;
Paul Robinson, Ladenburg, DE;
Brigitte Sandmann, Heidelberg, DE;
Harald Magg, Ladenburg, DE;
Wilfried Höflinger, Schriesheim, DE;
Assignee:
Joh A. Benckiser, GmbH, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/700 ; C11D 3/28 ; C11D 3/39 ;
U.S. Cl.
CPC ...
C11D 1/700 ; C11D 3/28 ; C11D 3/39 ;
Abstract
The invention relates to a dishwasher detergent in the form of a multi-layer tablet comprising a bleach, a bleach activator, a silver/copper corrosion inhibitor and also other customary constituents, where the silver/copper corrosion inhibitor is not present together with the bleach and the bleach activator in one layer.