Patents by Inventor Calvin D. Noelle

Calvin D. Noelle 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).

  • Recovery of oil from oil sands
    Patent number: 4338185
    Abstract: In the method of recovering oil from oil sand wherein the oil sand is tumbled in an aqueous alkaline solution to form a floating mass in which the oil is dispersed and the oil then recovered from the mass, the step of including in the aqueous alkaline solution 0.3 to 100 parts per million of a water-soluble member of the group consisting of anionic polyelectrolytes having a low molecular weight, acrylic acid, mannuronic acid and the sodium salts thereof.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: July 6, 1982
    Inventor: Calvin D. Noelle