Patents by Inventor John Charles Forrest

John Charles Forrest 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).

  • Drilling fluids and methods for making the same
    Patent number: 11104837
    Abstract: A mixture suitable for use in a drilling fluid includes an amount base fluid and recycled fuel oil in an amount sufficient to provide an emulsion stability of the drilling fluid of about 500 volts or greater.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 31, 2021
    Assignee: Clean Slurry Technology, Inc.
    Inventor: John Charles Forrest
  • DRILLING FLUIDS AND METHODS FOR MAKING THE SAME
    Publication number: 20190382640
    Abstract: A mixture suitable for use in a drilling fluid includes an amount base fluid and recycled fuel oil in an amount sufficient to provide an emulsion stability of the drilling fluid of about 500 volts or greater.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Inventor: John Charles Forrest
  • Drilling fluids and methods for making the same
    Patent number: 10421892
    Abstract: A mixture suitable for use in a drilling fluid includes an amount base fluid and recycled fuel oil in an amount sufficient to provide an emulsion stability of the drilling fluid of about 500 volts or greater.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: September 24, 2019
    Assignee: Clean Slurry Technology, Inc.
    Inventor: John Charles Forrest
  • DRILLING FLUIDS AND METHODS FOR MAKING THE SAME
    Publication number: 20190127626
    Abstract: A mixture suitable for use in a drilling fluid includes an amount base fluid and recycled fuel oil in an amount sufficient to provide an emulsion stability of the drilling fluid of about 500 volts or greater.
    Type: Application
    Filed: September 18, 2018
    Publication date: May 2, 2019
    Inventor: John Charles Forrest