Patents by Inventor Leonard Singer

Leonard Singer 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).

  • Enhanced directional conductivity of graphitizable foam
    Patent number: 7824650
    Abstract: A graphitizable carbon foam having enhanced directional thermal conductivity is provided. The mesophase portions of a mesophase pitch are aligned with each other to create an oriented mesophase pitch, which is then foamed to provide an oriented pitch foam. The pitch foam can be heated to carbonize the pitch thereby forming an oriented carbon foam. The carbon foam can be further heated to provide an oriented graphite foam.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: November 2, 2010
    Assignee: GrafTech International Holdings Inc.
    Inventors: Peter G. Stansberry, Leonard Singer
  • Enhanced Directional Conductivity Of Graphitizable Foam
    Publication number: 20080199390
    Abstract: A graphitizable carbon foam having enhanced directional thermal conductivity is provided. The mesophase portions of a mesophase pitch are aligned with each other to create an oriented mesophase pitch, which is then foamed to provide an oriented pitch foam. The pitch foam can be heated to carbonize the pitch thereby forming an oriented carbon foam. The carbon foam can be further heated to provide an oriented graphite foam.
    Type: Application
    Filed: February 21, 2007
    Publication date: August 21, 2008
    Inventors: Peter G. Stansberry, Leonard Singer