Patents by Inventor David Odelson

David Odelson 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).

  • Microbial process for producing methane from coal
    Patent number: 6143534
    Abstract: Lignite is treated with ligninase source to enhance its reactivity. In one embodiment, lignite is gasified in a subterranean reactor by simultaneous digestion by anaerobic ligninase producers, such as termite microflora, and acid formers and methanogens. In another embodiment, the lignite is treated with ligninase prior to digestion by the acid formers and methanogens. If desired, the lignite may be pretreated by alkaline hydrolysis.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: November 7, 2000
    Assignee: Reliant Energy Incorporated
    Inventors: William M. Menger, Ernest E. Kern, O. C. Karkalits, Donald L. Wise, Alfred P. Leuschner, David Odelson, Hans E. Grethlein