Patents by Inventor Hendrik M. Stoltz

Hendrik M. Stoltz 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).

  • Multi-layered wellbore junction
    Patent number: 7225875
    Abstract: A multi-layered wellbore junction. In a described embodiment, a method of forming an expanded chamber in a subterranean well includes the steps of: positioning multiple chamber sidewall layers in the well; and expanding the layers in the well to form the expanded chamber.
    Type: Grant
    Filed: February 6, 2004
    Date of Patent: June 5, 2007
    Assignee: Halliburton Energy Services, Inc.
    Inventors: David J. Steele, John M. Kolker, Hendrik M. Stoltz, Gerald E. Kent