Patents by Inventor Norman D. Rogers

Norman D. Rogers 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).

  • Method of achieving high production rates in wells with small diameter tubulars
    Patent number: 5501278
    Abstract: Production from a producing oil well is increased by forming a pumping string with pipe sections of small diameter and high tensile strength at the top and large diameter low tensile strength at the bottom of the well.
    Type: Grant
    Filed: December 16, 1994
    Date of Patent: March 26, 1996
    Assignee: Texaco Inc.
    Inventors: Kenneth D. Garrett, Norman D. Rogers