Patents by Inventor Uwe Ohlrogge

Uwe Ohlrogge 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).

  • Patent number: 5808136
    Abstract: A catalyst and method of its production for use in making vinyl acetate monomer. The carrier is impregnated with a basic solution and a solution containing gold salts and palladium salts and finally impregnated with alkali acetate. The activity and selectivity of the catalyst, its mechanical strength, the noble-metal adhesion and the dispersion of noble metal on the carrier can be improved if the carrier is impregnated in a pretreatment with salts containing as cation elements of groups IA, IIA, IIIA and IVB of the periodic table and as anions elements of group VIIA or complex anions such as nitrate, sulfate or anions of organic acids such as acetate and lactate and is subsequently dried and calcined at temperatures of at least 160.degree. C.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: September 15, 1998
    Assignee: Degussa Aktiengesellschaft
    Inventors: Thomas Tacke, Herbert Mueller, Uwe Ohlrogge, Francis P. Daly, Hans Lansink Rotgerink, Helmfried Krause