Patents by Inventor Anita Marks

Anita Marks 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).

  • Processing of oil sand ore which contains degraded bitumen
    Patent number: 7399406
    Abstract: Methods are disclosed for identifying and treating oil sand ores having degraded bitumen. This can be done by considering the location from which the ore is mined or its history, or by microscopic examination of a bitumen froth made from the ore, or by near-infrared spectroscopy. Ore which contains degraded bitumen is treated with at least 0.05 wt/wt % alkaline material, preferably 0.1 wt./wt % of such alkaline material, in the water addition step of a hot or warm water extraction process for the making of bitumen froth, such as the Clark process.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: July 15, 2008
    Assignee: Suncor Energy, Inc.
    Inventors: Randy Mikula, Vicente Munoz, Brad Bjornson, Doug Cox, Anita Marks
  • Processing of oil sand ore which contains degraded bitumen
    Publication number: 20030205507
    Abstract: Methods are disclosed for identifying and treating oil sand ores having degraded bitumen. This can be done by considering the location from which the ore is mined or its history, or by microscopic examination of a bitumen froth made from the ore, or by near-infrared spectroscopy. Ore which contains degraded bitumen is treated with at least 0.05 wt/wt % alkaline material, preferably 0.1 wt./wt % of such alkaline material, in the water addition step of a hot or warm water extraction process for the making of bitumen froth, such as the Clark process.
    Type: Application
    Filed: May 2, 2002
    Publication date: November 6, 2003
    Inventors: Randy Mikula, Vicente Munoz, Brad Bjornson, Doug Cox, Anita Marks