Patents by Inventor Gottfried Schoebel

Gottfried Schoebel 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).

  • N-(Sulfoalkane) amino alkane phosphonic acids and their water-soluble salts
    Patent number: 4250107
    Abstract: N-(sulfo alkane) amino alkane phosphonic acids or their water-soluble salts are obtained by reacting an alkali metal salt of an amino alkane phosphonic acid with at least one hydrogen atom in the amino group which can be replaced by a sulfo alkane group, in an alkaline medium with an alkane sultone while heating.
    Type: Grant
    Filed: November 6, 1978
    Date of Patent: February 10, 1981
    Assignee: Benckiser-Knapsack GmbH
    Inventors: Klaus Sommer, Gottfried Schoebel