Patents by Inventor Sam W. Ray

Sam W. Ray 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: 6132655
    Abstract: Thermoplastic foam is converted into useful products by simultaneously compressing and agitating particles of the foam. The particles are formed into a substantially unitary mass of hot softened material which can be immediately formed, cast or extruded into useful particles.
    Type: Grant
    Filed: December 27, 1994
    Date of Patent: October 17, 2000
    Inventor: Sam W. Ray
  • Patent number: D278974
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: May 28, 1985
    Assignee: Foam Tek, Inc.
    Inventor: Sam W. Ray
  • Patent number: D481092
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 21, 2003
    Inventor: Sam W. Ray