Patents by Inventor Guido Sonnen

Guido Sonnen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of producing alkaline-earth salts of aliphatic .beta.-keto compounds
    Patent number: 6093844
    Abstract: Proposed is a method of producing alkaline-earth salts of aliphatic .beta.-keto compounds by reacting alkaline-earth hydroxides with aliphatic .beta.-ketoesters and/or .beta.-diketones in the absence of solvent to give the corresponding alkaline-earth salts. The .beta.-keto compound is added in portions to the powdered alkaline-earth hydroxide and the reaction mixture subsequently dried. Good yields are obtained of a fine-grained, light colored product.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: July 25, 2000
    Assignee: Henkel Kommanditgesellschaft auf Aktien (KGaA)
    Inventors: Gerhard Wollmann, Joerg-Dieter Klamann, Guido Sonnen