Patents by Inventor Jeff Keen

Jeff Keen 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).

  • Viscometer tube
    Patent number: 7111499
    Abstract: A viscometer tube includes a tubular body divided into three sections: an upper feed section, a lower capillary section and an intermediate transition section providing a transition between the upper feed section and the lower capillary section. Liquid flows from the upper feed section to the intermediate transition section and then to the lower capillary section. The upper feed section intersects the intermediate transition section either laterally or from below. An upper remote end of the intermediate transition section is open to atmosphere.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: September 26, 2006
    Assignee: The Fluid Life Corporation
    Inventor: Jeff A. Keen
  • Viscometer tube
    Publication number: 20050132780
    Abstract: A viscometer tube includes a tubular body divided into three sections: an upper feed section, a lower capillary section and an intermediate transition section providing a transition between the upper feed section and the lower capillary section. Liquid flows from the upper feed section to the intermediate transition section and then to the lower capillary section. The upper feed section intersects the intermediate transition section either laterally or from below. An upper remote end of the intermediate transition section is open to atmosphere.
    Type: Application
    Filed: November 12, 2004
    Publication date: June 23, 2005
    Inventor: Jeff Keen