Patents by Inventor John L. McCoy

John L. McCoy 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).

  • Flapper lock open apparatus
    Patent number: 6684958
    Abstract: Various techniques for holding open an SSSV using expansion technology are disclosed. A sleeve is delivered to the SSSV and expanded mechanically or hydraulically to deposit the deformed sleeve in position over a flapper or against a flow tube holding the flapper in the open position.
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: February 3, 2004
    Assignee: Baker Hughes Incorporated
    Inventors: Ronald D. Williams, Grant R. Thompson, James T. Sloan, Brian S. Shaw, John L. McCoy, Jr., Barry L. Brown
  • Flapper lock open apparatus
    Publication number: 20030192703
    Abstract: Various techniques for holding open an SSSV using expansion technology are disclosed. A sleeve is delivered to the SSSV and expanded mechanically or hydraulically to deposit the deformed sleeve in position over a flapper or against a flow tube holding the flapper in the open position.
    Type: Application
    Filed: April 15, 2002
    Publication date: October 16, 2003
    Inventors: Ronald D. Williams, Grant R. Thompson, James T. Sloan, Brian S. Shaw, John L. McCoy, Barry L. Brown