Patents by Inventor Werner Holtmann

Werner Holtmann 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).

  • Surfactant Combination
    Publication number: 20010031712
    Abstract: A surfactant combination contains (a) one or more alkyl ether sulfates, (b) one or more alkyl sulfonates in a quantity—based on the surfactant combination—of less than 50% by weight and (c) one or more amphoteric surfactants and, to improve drying and drainage behavior, may be part of a water-based liquid composition which may be used to clean hard surfaces, more particularly tableware.
    Type: Application
    Filed: January 29, 2001
    Publication date: October 18, 2001
    Inventors: Kerstin Ziganke, Werner Holtmann, Brigitte Giesen, Georg Meine
  • Corrosion protection
    Patent number: 4784823
    Abstract: There is described an apparatus for the corrosion protection of containers for the long time storage of radioactive materials, especially of spent fuel elements, in suitable geological formations which avoid corrosion of the container even with unexpected occurrence of water, or at least delay and minimize the corrosion. The apparatus consists essentially of sacrificial anodes 2 which are conductively joined to the containers 1 via connections 3.
    Type: Grant
    Filed: February 2, 1982
    Date of Patent: November 15, 1988
    Assignee: Nukem GmbH
    Inventors: Werner Holtmann, Hartmut Kroll, Gunther Luthardt, Volker Portscher