Patents by Inventor David Nigel Harry

David Nigel Harry 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).

  • Preparation of guar suspension from guar splits
    Patent number: 7790774
    Abstract: A continuous process forms liquid or semi-solid suspensions of water-hydratable guar particles in a non-aqueous solvent directly from hydrated guar splits. In particular, guar splits are hydrated, compressed to form wet guar flakes, and then dried. The dried guar flakes are then combined with a non-aqueous carrier fluid. Finally, the guar and carrier fluid mixture is homogenized, and, if desired, the homogenized guar and carrier fluid mixture may be shear milled to further size-reduce the average particle size of the guar particle.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 7, 2010
    Assignee: Benchmark Energy Products, LLC
    Inventors: E. Wayne Kinsey, III, David Nigel Harry, Gordon Randall Dixon, Fati Malekahmadi, Keith Ingram Dismuke
  • Suspension of borates in non-aqueous solvents and use thereof
    Patent number: 7084096
    Abstract: A non-aqueous suspension including boron-containing particulates, a low molecular weight polyalkylene glycol and a suspension stabilizer is provided. Methods of crosslinking water soluble polymers and of fracturing a subterranean formation are also provided.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: August 1, 2006
    Assignee: Benchmark Research & Technology, LLC
    Inventors: William Franklin Harris, Jr., David Nigel Harry, Xiaoping Qiu
  • Suspension of borates in non-aqueous solvents and use thereof
    Publication number: 20030220203
    Abstract: A non-aqueous suspension including boron-containing particulates, a low molecular weight polyalkylene glycol and a suspension stabilizer is provided. Methods of crosslinking water soluble polymers and of fracturing a subterranean formation are also provided.
    Type: Application
    Filed: May 20, 2003
    Publication date: November 27, 2003
    Inventors: William Franklin Harris, David Nigel Harry, Xiaoping Qiu