Patents by Inventor Jurgen Tonne

Jurgen Tonne 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).

  • Plant substrate and use thereof
    Patent number: 5328498
    Abstract: A plant substrate, characterized by the fact that it contains 20 to 100% of a granulate consisting of foamed clays or weakly fired ceramic materials, as well as the use thereof.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: July 12, 1994
    Assignee: Effem GmbH
    Inventors: Rudiger Lang, Jurgen Tonne, Klaus Czempik
  • Plant substrate and uses thereof
    Patent number: 5175131
    Abstract: A plant substrate, characterizd by the fact that it contains 20 to 100% of a granulate consisting of foamed clays or weakly fired ceramic materials, and uses thereof.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: December 29, 1992
    Assignee: EFFEM GmbH
    Inventors: Rudiger Lang, Jurgen Tonne, Klaus Czempik