Patents by Inventor Duane Dunnahoe

Duane Dunnahoe 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).

  • Downhole milling tool apparatus
    Patent number: 10519734
    Abstract: A downhole milling tool apparatus for use in milling through hard substances, such as barite, found in underground wells, providing a stepped increase of diameters and positioning of carbide cutters and appropriate positioning of fluid ports and channels, to provide removal of cuttings and cooling and lubricating of the cutting head, in turn providing more efficiency and a better rate of penetration (ROP).
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: December 31, 2019
    Assignee: EXTREME ENERGY SERVICES, L.L.C.
    Inventors: Richard Messa, Christopher Gasser, Brady Guilbeaux, Ashley Rochon, Duane Dunnahoe
  • Downhole-milling-tool method
    Patent number: 10519735
    Abstract: A downhole-milling-tool method for milling through hard substances, such as barite, found in underground wells, providing a stepped increase of diameters and positioning of carbide cutters and appropriate positioning of fluid ports and channels, to provide removal of cuttings and cooling and lubricating of the cutting head, in turn providing more efficiency and a better rate of penetration (ROP).
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: December 31, 2019
    Assignee: EXTREME ENERGY SERVICES, L.L.C.
    Inventors: Richard Messa, Christopher Gasser, Brady Guilbeaux, Ashley Rochon, Duane Dunnahoe
  • DOWNHOLE-MILLING-TOOL METHOD
    Publication number: 20180223617
    Abstract: A downhole-milling-tool method for milling through hard substances, such as barite, found in underground wells, providing a stepped increase of diameters and positioning of carbide cutters and appropriate positioning of fluid ports and channels, to provide removal of cuttings and cooling and lubricating of the cutting head, in turn providing more efficiency and a better rate of penetration (ROP).
    Type: Application
    Filed: February 9, 2017
    Publication date: August 9, 2018
    Inventors: Richard Messa, Christopher Gasser, Brady Guilbeaux, Ashley Rochon, Duane Dunnahoe
  • DOWNHOLE MILLING TOOL APPARATUS
    Publication number: 20180223616
    Abstract: A downhole milling tool apparatus for use in milling through hard substances, such as barite, found in underground wells, providing a stepped increase of diameters and positioning of carbide cutters and appropriate positioning of fluid ports and channels, to provide removal of cuttings and cooling and lubricating of the cutting head, in turn providing more efficiency and a better rate of penetration (ROP).
    Type: Application
    Filed: February 9, 2017
    Publication date: August 9, 2018
    Inventors: Richard Messa, Christopher Gasser, Brady Guilbeaux, Ashley Rochon, Duane Dunnahoe