Patents by Inventor John E. Avila

John E. Avila 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).

  • Firing head for a perforating gun assembly
    Patent number: 4969525
    Abstract: A hydraulically actuated firing head for a tubing conveyed well perforating system includes an actuating piston responsive to a differential between tubing pressure and a sealed low pressure zone contained within the firing head. The actuating piston releases a firing piston which initiates a firing sequence.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: November 13, 1990
    Assignee: Halliburton Company
    Inventors: Kevin R. George, David S. Wesson, John E. Avila