Patents by Inventor Eugene Darrell Simmons

Eugene Darrell Simmons 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).

  • Liquid rod pump and method
    Patent number: 8573309
    Abstract: The present invention comprises a downhole unit that includes at least one plunger and that uses a power fluid to recover production fluid from a well. The downhole unit recovers production fluid and brings it to the surface of the well during both the downward and upward motion of the at least one plunger. The downhole unit can also optionally dispose of unwanted fluids in a formation.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: November 5, 2013
    Inventor: Eugene Darrell Simmons
  • Liquid Pump Rod
    Publication number: 20090321084
    Abstract: The present invention comprises a downhole unit that includes at least one plunger and that uses a power fluid to recover production fluid from a well.
    Type: Application
    Filed: June 30, 2009
    Publication date: December 31, 2009
    Inventor: Eugene Darrell Simmons