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:
Mar. 30, 1999
Filed:
Aug. 28, 1997
Applicant:
Inventors:
Juergen Haerer, Duesseldorf, DE;
Helmut Blum, Duesseldorf, DE;
Birgit Burg, Alpen, DE;
Thomas Holderbaum, Monheim, DE;
Willi Buchmeier, Mettmann, DE;
Peter Jeschke, Neuss, DE;
Horst-Dieter Speckmann, Langenfeld, DE;
Frank Wiechmann, Duesseldorf, DE;
Christian Nitsch, Duesseldorf, DE;
Assignee:
Henkel Kommanditgesellschaft auf Aktien, Duesseldorf, DE;
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ; C11D / ; C11D / ;
U.S. Cl.
CPC ...
510226 ; 510220 ; 510228 ; 510229 ; 510231 ; 510233 ; 510235 ; 510236 ; 510245 ; 510254 ; 510255 ; 510258 ; 510259 ; 510401 ; 510402 ; 510367 ; 510372 ; 510374 ; 510375 ; 510376 ; 422-7 ; 422 13 ; 252387 ; 2523891 ; 25238952 ; 25238954 ; 25238953 ; 134 252 ;
Abstract
A process for inhibiting the corrosion of silver in a dishwashing detergent solution by adding to the solution an inorganic redox-active substance.