Patents by Inventor Hugh D. Ostocke

Hugh D. Ostocke 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).

  • Valve assembly for hydrocarbon wells
    Patent number: 6695049
    Abstract: A valve assembly for hydrocarbon wells comprises a first valve (e.g., a conventional gate valve) and a second valve (e.g., a hydraulically operated, fail safe check valve). The second valve provides an alternative to the pressure barrier conventionally formed by a downhole annulus safety valve. It is installable/retrievable through the first valve using a tool of the type used for installation of surface wellhead VR (valve replacement) plugs.
    Type: Grant
    Filed: July 9, 2001
    Date of Patent: February 24, 2004
    Assignee: FMC Technologies, Inc.
    Inventors: Hugh D. Ostocke, Gordon G. Shiach, John Quinn
  • Valve assembly for hydrocarbon wells
    Publication number: 20020017384
    Abstract: A valve assembly for hydrocarbon wells comprises a first valve (e.g., a conventional gate valve) and a second valve (e.g., a hydraulically operated, fail safe check valve). The second valve provides an alternative to the pressure barrier conventionally formed by a downhole annulus safety valve. It is installable/retrievable through the first valve using a tool of the type used for installation of surface wellhead VR (valve replacement) plugs.
    Type: Application
    Filed: July 9, 2001
    Publication date: February 14, 2002
    Inventors: Hugh D. Ostocke, Gordon G. Shiach, John Quinn