Patents by Inventor Freimut J. Koch

Freimut J. Koch 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).

  • Porous fluid-permeable moldings of silicon carbide and process of production
    Patent number: 5474587
    Abstract: A process for producing a porous fluid permeable body which is heatable by the passage of electric current therethrough. The process involves coating silicon-containing particles with a cokable organic binder to produce coated particles with a particle size fraction of 0.2 to 10 mm, forming the particles into a molding, coking the binder and heating the molding at 1400.degree. to 2000.degree. C. in the presence of nitrogen to form a doped body containing 30% to 100% .beta.-silicon carbide.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: December 12, 1995
    Assignee: Forschungszentrum Julich GmbH
    Inventors: Francisco J. Dias, Freimut J. Koch