Patents by Inventor Jeffrey James Roberts

Jeffrey James Roberts 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).

  • Patent number: 8193823
    Abstract: An assembly apparatus for measurement of electrical conductivity or other properties of a sample in a piston cylinder device wherein pressure and heat are applied to the sample by the piston cylinder device. The assembly apparatus includes a body, a first electrode in the body, the first electrode operatively connected to the sample, a first electrical conductor connected to the first electrode, a washer constructed of a hard conducting material, the washer surrounding the first electrical conductor in the body, a second electrode in the body, the second electrode operatively connected to the sample, and a second electrical conductor connected to the second electrode.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: June 5, 2012
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Heather Christine Watson, Jeffrey James Roberts