Patents by Inventor Klaus Sonnen

Klaus Sonnen 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).

  • Apparatus and method for treatment of organically contaminated soil
    Patent number: 5602035
    Abstract: An apparatus and method is described for treatment of organically contaminated soil in which a modular structure having a plurality of interconnected segments with two end segments and at least one intermediate segment, allows for the formation of a system closed off from the outside atmosphere such that a vacuum can be maintained in the system and one or more gases can be supplied to the system, and in which at least one conduit interconnecting the gas supply with the vacuum such that a circuit is established for circulating the gas in the closed system.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: February 11, 1997
    Inventors: Klaus Sonnen, Hans Sonnen