Patents by Inventor Guenther Weidenbach

Guenther Weidenbach 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).

  • Catalyst and method of preparing same
    Patent number: 4088607
    Abstract: Disclosed is an improved catalyst having a high thermal stability including a solid catalyst support having a layer of catalytically active carrier material, either as a coating on a non-catalytically active support or as particles of catalytically active carrier material, and a catalytically active metal component upon the carrier, wherein the improved aspect resides in between about 0.2 and 15% by weight of zinc in the form of zinc oxide contained in the catalytically active carrier material. Also disclosed are a method for preparing the improved catalyst and a method for utilizing the catalyst for purifying automobile exhaust gas and industrial waste gas.
    Type: Grant
    Filed: August 25, 1976
    Date of Patent: May 9, 1978
    Assignee: Kali-Chemie Aktiengessellschaft
    Inventors: Guenther Weidenbach, Karl H. Koepernik, Hans Brautigam
  • Catalytic treatment of automotive exhaust gas
    Patent number: 4005177
    Abstract: Disclosed is an improved catalyst having a high thermal stability including a solid catalyst support having a layer of catalytically active carrier material, either as a coating on a non-catalytically active support or as particles of catalytically active carrier material, and a catalytically active metal component upon the carrier, wherein the improved aspect resides in between about 0.2 and 15% by weight of zinc in the form of zinc oxide contained in the catalytically active carrier material. Also disclosed are a method for preparing the improved catalyst and a method for utilizing the catalyst for purifying automobile exhaust gas and industrial waste gas.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: January 25, 1977
    Assignee: Kali-Chemie Aktiengesellschaft
    Inventors: Guenther Weidenbach, Karl Hermann Koepernik, Hans Braeutigam