Patents by Inventor Wilfried Roehl

Wilfried Roehl 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).

  • Method of manufacturing a detergent with soluble builder
    Patent number: 6528474
    Abstract: The invention relates to a process for the production of substantially alumosilicate-free detergents containing a soluble builder system which provides free-flowing and storage-stable granules. In this process for the production of a particulate, substantially alumosilicate-free detergent, an anionic surfactant acid is sprayed onto a detergent component containing anionic surfactant and builders in order to increase the anionic surfactant content.
    Type: Grant
    Filed: July 5, 2000
    Date of Patent: March 4, 2003
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Rene-Andres Artiga Gonzalez, Andreas Lietzmann, Maria Liphard, Wilfried Roehl