Patents by Inventor John Carl Sauer

John Carl Sauer 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).

  • Oxidation of N-substituted methylamines to N-substituted formamides
    Patent number: 4042621
    Abstract: An N-substituted methylamine is reacted in a liquid homogeneous system with molecular oxygen in the presence of a soluble halide of certain metals to produce an N-substituted formamide. Exemplary is the reaction of trimethylamine with oxygen in the presence of cupric chloride to produce dimethylformamide.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: August 16, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: John Carl Sauer