Patents by Inventor Rolf Laudi

Rolf Laudi 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).

  • Heat storage medium
    Patent number: 6227285
    Abstract: A heat storage medium such as paraffin for a latent heat accumulator (cold accumulator), which solidifies while forming crystal structures. In order to achieve improved responsiveness on heat input, the crystal structures are modified by a structure additive preferably in terms of hollow structures, such as e.g. hollow cones.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: May 8, 2001
    Assignee: Schümann Sasol GmbH & Co. KG
    Inventors: Günter Hildebrand, Michael Matthäi, Norbert Matzat, Rolf Laudi, Klaus Fieback, Wolfgang Ahrens, Thomas Krämer