Patents by Inventor Kurt Kirchner

Kurt Kirchner 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).

  • Process for the decontamination of soil by means of microorganisms
    Patent number: 4871673
    Abstract: A process for the decontamination of soil is disclosed wherein specific microorganisms are fixed at a high cell concentration to a porous and adsorptive carrier; and applied to contaminated soil to bring about decontamination.
    Type: Grant
    Filed: August 20, 1987
    Date of Patent: October 3, 1989
    Inventors: Hans J. Rehm, Kurt Kirchner
  • Process for separation of traces of gaseous contaminants from waste gases by chemical absorption
    Patent number: 4370306
    Abstract: In the separation of traces of halogens and sulfur from a halogen- and/or sulfur-containing gas stream wherein the gas stream is contacted with a wash liquid to absorb the halogens and sulfur, the improvement which comprises including in the wash liquid heavy metal ions capable of forming difficultly soluble halides and sulfides. Preferably the heavy metal ions are silver or copper, and the insoluble heavy metal sulfide and/or halide is removed from the wash liquid which is recirculated. Almost quantitative removal is achieved in as little as 1 second of gas-wash liquid contact.
    Type: Grant
    Filed: March 31, 1980
    Date of Patent: January 25, 1983
    Assignee: Dechema Deutsche Gesellschaft fur Chemisches Apparatewesen E V
    Inventors: Kurt Kirchner, Wolfgang Litzenburger