Patents by Inventor Walter Lenz

Walter Lenz 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).

  • Continuous preparation of hydrocyanic acid by thermolysis of formamide
    Publication number: 20020018744
    Abstract: In a continuous process for preparing hydrocyanic acid by thermolysis of gaseous, superheated formamide at elevated temperature and reduced pressure in the presence of a finely divided solid catalyst in a thermolysis reactor, the solid catalyst is kept in motion by upward-directed or downward-directed vertical flow of the gaseous reaction mixture.
    Type: Application
    Filed: December 12, 2000
    Publication date: February 14, 2002
    Inventors: Wolfgang Mattmann, Walter Lenz, Helmuth Menig, Wolfgang Siegel