Patents by Inventor Roy L. Littleton

Roy L. Littleton 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).

  • Thermoelectric composition
    Patent number: 6552255
    Abstract: The thermoelectric properties (resistivity, thermopower and thermal conductivity) of single crystals of the low-dimensional pentatelluride materials are disclosed. The pentatellurides are well suited for use in thermoelectric devices. In general, the pentatellurides include hafnium pentatelluride and zirconium pentatelluride, which can both be substituted with selective amounts of various metals, including titanium, selenium, and antimony.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: April 22, 2003
    Assignee: Clemson University
    Inventors: Terry M. Tritt, Roy L. Littleton, Joseph Kolis, Christopher Feger