Patents by Inventor Jack E. Evans

Jack E. Evans 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).

  • Gas well dewatering method and system
    Patent number: 4226284
    Abstract: A method and system for dewatering gas wells on an intermittent, cyclical, period which operates to eject water from the well without loss of gas from the well, or inordinate shut down delays. The said method and system for dewatering gas wells includes time controlled valves and the pressure differential between the tubing and the casing to periodically dewater the well, without the ususal loss of gas.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: October 7, 1980
    Inventor: Jack E. Evans