Patents by Inventor John E. STAUFFER, II

John E. STAUFFER, II 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).

  • Extraction of bitumen from oil sands
    Patent number: 9701909
    Abstract: Carbon dioxide is used as a solvent to extract bitumen from oil sands in an anhydrous process that is compatible with existing procedures for upgrading bitumen. The process should provide high yields and meet environmental concerns.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: July 11, 2017
    Inventor: John E. Stauffer, II
  • EXTRACTION OF BITUMEN FROM OIL SANDS
    Publication number: 20170088779
    Abstract: Carbon dioxide is used as a solvent to extract bitumen from oil sands in an anhydrous process that is compatible with existing procedures for upgrading bitumen. The process should provide high yields and meet environmental concerns.
    Type: Application
    Filed: December 27, 2012
    Publication date: March 30, 2017
    Inventor: John E. STAUFFER, II