Patents by Inventor Dana Wregglesworth

Dana Wregglesworth 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).

  • IN SITU PROCESS AND METHOD FOR GROUND WATER REMEDIATION AND RECOVERY OF MINERALS AND HYDROCARBONS
    Publication number: 20110293492
    Abstract: Devices, systems, and methods relating to advanced, high pressure oxidation are described. The devices, systems, and methods can be used to decontaminate ground water in a well or opening in a ground water table, and to recover minerals and hydrocarbons from subterranean deposits.
    Type: Application
    Filed: April 14, 2009
    Publication date: December 1, 2011
    Inventors: Douglas C. Gustafson, Dana Wregglesworth
  • Fluid recovery system
    Patent number: 6019902
    Abstract: A process for separating a carrier from a mixture of the carrier and paint solids includes collecting a mixture of the carrier and the paint solids and filtering the mixture through a metal or inorganic membrane filter whereby paint solids are retained by the filter and the carrier is allowed to pass through the filter.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: February 1, 2000
    Assignee: Durr Environmental, Inc.
    Inventors: Frank Hussey, Robert Cox, Matthias Stegmueller, Dana Wregglesworth