Patents by Inventor Hans Ludwig Panke

Hans Ludwig Panke 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).

  • Fabric softeners
    Patent number: 4118324
    Abstract: Fabric softeners in the form of aqueous solutions or dispersions which contain as active ingredient one or several compounds of the formula I ##STR1## wherein R.sub.1 is long-chain alkyl, X and Y are hydrogen or methyl, X and Y not being methyl simultaneously, n is an integer of 1 to 20, R.sub.2 is lower alkyl and A is an anion.
    Type: Grant
    Filed: June 17, 1977
    Date of Patent: October 3, 1978
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Willi Steckelberg, Hans Ludwig Panke, Adolf May, Hans-Walter Bucking