Patents by Inventor Yamuna Lingappa

Yamuna Lingappa 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).

  • Methane generator
    Patent number: 4349355
    Abstract: Apparatus for generating methane from degradable organic material, the apparatus consisting of a tank containing the material in a liquid slurry and gas collector slidably mounted in its upper portion, the gas collector having rods which extend downwardly through a slotted retainer into the organic material for agitating the organic material within the liquid slurry.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: September 14, 1982
    Inventors: Banadakoppa T. Lingappa, Yamuna Lingappa