Patents by Inventor J. Mark Landrum

J. Mark Landrum 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).

  • Electricity generation system
    Patent number: 7442231
    Abstract: An electricity generation system is disclosed for utilization with a natural gas purification system. In one embodiment, a gas-driven engine which is substantially powered by a low-BTU gas produced in a natural gas purification process is mechanically coupled to an electric motor and is utilized to drive the electrical motor. The electric motor generates electrical energy that can be utilized to power substantially all or a portion of the purification process' electrical load. The generated electricity may be used to supply major or minor loads of the gas purification process.
    Type: Grant
    Filed: August 22, 2005
    Date of Patent: October 28, 2008
    Assignee: Syntroleum Corporation
    Inventor: J. Mark Landrum
  • Process to remove nitrogen and/or carbon dioxide from methane-containing streams
    Patent number: 7314503
    Abstract: A process for the removal of inert gases, such as nitrogen and carbon dioxide, from methane-containing gases, such as natural gas, including a first stage removal which lowers the total combined inert content to about less than 30% and a second stage removal utilizing a pressure swing adsorption process comprising one or more adsorbent beds comprising contracted titanosilicate-1 adsorbent, wherein the purified methane-containing gas contains less than about 6% total combined inerts.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: January 1, 2008
    Assignee: Syntroleum Corporation
    Inventors: J. Mark Landrum, Branch J. Russell, Kenneth Agee, Stephen LeViness