Patents by Inventor Donald W. Ekdahl

Donald W. Ekdahl 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).

  • Apparatus and method to obtain representative samples of oil well production
    Patent number: 6212948
    Abstract: An apparatus and process for obtaining representative samples of fluids produced from one or more oil wells by means of a closed vessel chamber with lease water supply port connected to a lease water supply line, where a pressure sensor within such internal chamber is used together with a flowmeter and liquid-sensing probe or oil/water interface sensor employed in the fluid flow path lines to determine a rate of well production along with absolute or relative amounts of oil, water and gas contents.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: April 10, 2001
    Inventors: Donald W. Ekdahl, Donald C. Nelson