Patents by Inventor Rainer H. R. Muth

Rainer H. R. Muth 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).

  • Process for making sodium acylisethionates
    Patent number: 5384421
    Abstract: This invention discloses an improved method for making salts of acylisethionates using a direct esterification of a fatty acid with one or more salts of a selected hydroxyalkanesulfonic acid in the presence of a catalyst selected from the described group. This method may be used at temperatures below 200 degrees C.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: January 24, 1995
    Assignee: Hoechst Celanese Corporation
    Inventors: James F. Day, Wolf-Dieter Mueller, Rainer H. R. Muth