Patents by Inventor Jeffery Lee Hilpert

Jeffery Lee Hilpert 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).

  • Hydrostatic Pressure Test Method
    Publication number: 20160334300
    Abstract: A method and apparatus for testing closed hydraulic systems such as a blowout preventer for leaks maintain a constant pressure in the portion of the hydraulic system to be tested. A variable displacement pump is connected to the system for maintaining a constant pressure within the system. Any amount of fluid introduced into or removed from the blowout preventer in order to maintain constant pressure is measured and is an indication of the leak rate in the closed hydraulic system.
    Type: Application
    Filed: May 10, 2016
    Publication date: November 17, 2016
    Applicant: HilFlo, LLC
    Inventors: Clifford Lee Hilpert, Lewis Jackson Dutel, Laura Tufts Meyer, Jeffery Lee Hilpert, David William Blacklaw, Matteo Giovanni Batista