Patents by Inventor Heinz Jurgen Klatt

Heinz Jurgen Klatt 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).

  • Method for initiating an in-situ recovery process by the introduction of oxygen
    Patent number: 4042026
    Abstract: A method for starting a process to recover energy raw materials from a subterranean formation whereby igniters are injected into the upper region of the formation and inert gas is injected into the lower region of the formation, and thereafter an oxygen-containing gas is injected at a predetermined oxygen concentration and rate to initiate combustion, followed by increasing the oxygen concentration and/or rate of the injected gas to a maximum value.
    Type: Grant
    Filed: February 5, 1976
    Date of Patent: August 16, 1977
    Assignee: Deutsche Texaco Aktiengesellschaft
    Inventors: Gunter Pusch, Heinz Jurgen Klatt, Walter Frohlich