Patents by Inventor Roy D. Daussin

Roy D. Daussin 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).

  • Proppant Addition Method and System
    Publication number: 20090301725
    Abstract: A method of injecting a fracturing fluid may include pressurizing a first fluid with clean high-pressure pumps, joining proppant with the pressurized first fluid to form a fracturing fluid, and moving the fracturing fluid to a wellhead and downhole into a formation for fracturing. A pump may pressurize the proppant without the proppant passing therethrough.
    Type: Application
    Filed: June 1, 2009
    Publication date: December 10, 2009
    Inventors: Leonard Case, Roy D. Daussin, Calvin L. Stegemoeller, David M. Stribling, Brad R. Bull, Matthew W. Oehler