Patents by Inventor Christopher W. Nelson

Christopher W. Nelson 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).

  • Composition for steam extraction of bitumen
    Patent number: 10941347
    Abstract: The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: March 9, 2021
    Assignee: Dow Global Technologies LLC
    Inventors: Cole A. Witham, Yuko Kida, Biplab Mukherjee, Timothy J. Young, Christopher W. Nelson
  • COMPOSITION FOR STEAM EXTRACTION OF BITUMEN
    Publication number: 20190322944
    Abstract: The present invention relates to a bitumen recovery process from oil sands. The oil sands may be surface mined and transported to a treatment area or may be treated directly by means of an in situ process of oil sand deposits that are located too deep for strip mining. Specifically, the present invention involves the step of treating oil sands with a composition comprising an alkanolamine and an ethylene oxide capped glycol ether and/or propylene oxide capped glycol ether.
    Type: Application
    Filed: June 16, 2017
    Publication date: October 24, 2019
    Inventors: Cole A. Witham, Yuko Kida, Biplab Mukherjee, Timothy J. Young, Christopher W. Nelson