Patents by Inventor Patrick M. Laswell

Patrick M. Laswell 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).

  • Electronic humidity chamber for vapor desorption to determine high capillary pressures
    Patent number: 7453266
    Abstract: The present invention relates to the use of an electronically controlled humidity chamber with temperature controls: to determine, by vapor desorption, high capillary pressures of core samples; to produce core samples with a high capillary pressure for testing electrical properties; and, using a curve of high capillary pressures from vapor desorption data, to transform a curve of high capillary pressures determined from high pressure mercury injection.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: November 18, 2008
    Inventors: Patrick M. Laswell, Kent E. Newsham
  • Electronic humidity chamber for vapor desorption to determine high capillary pressures
    Patent number: 7171843
    Abstract: The present invention relates to the use of an electronically controlled humidity chamber with temperature controls: to determine, by vapor desorption, high capillary pressures of core samples; to produce core samples with a high capillary pressure for testing electrical properties; and, using a curve of high capillary pressures from vapor desorption data, to transform a curve of high capillary pressures determined from high pressure mercury injection.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: February 6, 2007
    Inventors: Patrick M. Laswell, Kent E. Newsham