Patents by Inventor Wolfram Keidel

Wolfram Keidel 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).

  • Filtration of fluid media
    Patent number: 4894070
    Abstract: An elongate tubular porous ceramic filter for use in the filtration of fluid media, e.g. the filtration of particulate matter from hot gases, is formed from a plurality of shorter tubular portions (10, 11, 12, 13, 14, 15, 20, 21) adhered together by a high-temperature adhesive at bonding points (30, 31) to provide long filter tubes.
    Type: Grant
    Filed: November 10, 1988
    Date of Patent: January 16, 1990
    Assignee: Foseco International Limited
    Inventors: Wolfram Keidel, Wilhelm Barlag, Rolf Loos