Patents by Inventor Heinrich Klotz

Heinrich Klotz 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).

  • Sound-absorbing wall element
    Patent number: 3961682
    Abstract: The invention concerns a sound-absorbing wall element made up of a plurality of layers, one layer comprising small shreds of reinforced pneumatic rubber tires, which tires are disintegrated to form the shreds, the shreds being bonded together to form a low-density irregular structure having pores.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: June 8, 1976
    Assignee: Hermann Hemscheidt Maschinenfabrik
    Inventors: Gerd Dausch, Heinrich Klotz