Patents by Inventor William K. Hesse

William K. Hesse 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 recovering vanadium from petroleum coke
    Patent number: 4243639
    Abstract: Petroleum coke containing inorganic compounds including vanadium is gasified with steam in the presence of an alkali metal salt gasification catalyst to produce a combustible gas and an inorganic ash composed primarily of said inorganic compounds and a water soluble alkali metal vanadate and the inorganic ash is placed in a sufficient amount of water to dissolve the vanadate compound and then is recovered by conventional means.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: January 6, 1981
    Assignee: Tosco Corporation
    Inventors: Frank C. Haas, William K. Hesse