Patents by Inventor Paul Jeffery Johantges

Paul Jeffery Johantges 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).

  • SURFACE CONTROLLED SUBSURFACE SAFETY VALVE
    Publication number: 20130048302
    Abstract: A safety valve for subsurface disposal equipped with an interfacing element of elastomeric and non-elastomeric components. The components include an elastomeric energizing component and a non-elastomeric seal ring configured to work together in attaining an internal seal sufficient for allowing the valve to remain consistently closed. Indeed, the aid afforded by the interfacing element may allow the valve to remain consistently and effectively closed even in particularly low pressure well environments or those of widely varying temperatures.
    Type: Application
    Filed: May 2, 2012
    Publication date: February 28, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Emrah Gokdag, Mark Anderson, Paul Jeffery Johantges, Jason A. McCann