Patents by Inventor David B. Wingard

David B. Wingard 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).

  • Brine water recycle process
    Patent number: 8535538
    Abstract: Embodiments provided herein include methods and apparatuses for purification and recycling of hydrofracture water used in natural gas drilling and production. Embodiments include removal of dissolved solids by precipitation with sodium sulfate and by evaporation using, for example, a multiple effect evaporator.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: September 17, 2013
    Assignee: Fairmount Brine Processing, LLC
    Inventors: John J. Keeling, Rex B. Tennant, II, David B. Wingard