Patents by Inventor A. Glen Smith

A. Glen Smith 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).

  • Oil well pumping string tubular extension for increasing oil to salt water ratio
    Patent number: 4335786
    Abstract: A Venturi type tube is coaxially connected with the depending end of an oil well pumping string for installation in a producing oil well for increasing the ratio of oil to salt water obtained from the well.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: June 22, 1982
    Inventor: A. Glen Smith