Patents by Inventor Leonard S. Singer

Leonard S. 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).

  • Thermoplastic compositions comprising filled, B-staged pitch
    Patent number: 5631086
    Abstract: Filled thermoplastic pitch comprising particulate filler and advanced mesophase pitch having a TMA deformation temperature of at least 400.degree. C., and a method for the manufacture thereof. The filled thermoplastic pitch may be shaped and densified in one or more thermoforming operations. The resulting preform may be thermoset and carbonized in ordinary baking operations without requiring molds and pressurized vessels.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: May 20, 1997
    Assignee: Amoco Corporation
    Inventors: Leonard S. Singer, David T. Orient
  • Thermoplastic compositions comprising filled, B-staged pitch
    Patent number: 5569417
    Abstract: Filled thermoplastic pitch comprising particulate filler and advanced mesophase pitch having a TMA deformation temperature of at least 400.degree. C., and a method for the manufacture thereof. The filled thermoplastic pitch may be shaped and densified in one or more thermoforming operations. The resulting preform may be thermoset and carbonized in ordinary baking operations without requiring molds and pressurized vessels.
    Type: Grant
    Filed: July 27, 1989
    Date of Patent: October 29, 1996
    Assignee: Amoco Corporation
    Inventors: Leonard S. Singer, David T. Orient
  • Flake-like carbon bodies from semicoke
    Patent number: 4891203
    Abstract: An anisotropic carbonaceous body is produced by plastically deforming a pitch-based semicoke at elevated temperature to align the internal structure. The semicoke may be carbonized and graphitized while retaining its anisotropic properties.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: January 2, 1990
    Assignee: Union Carbide Corporation
    Inventors: Leonard S. Singer, David T. Orient
  • Electrode member and process for the production thereof
    Patent number: 4729689
    Abstract: An electrode member comprising an electrode body having cementing pitch adhered to and impregnated within at least a portion of its electrode joint surface. Also a process for producing an electrode joint comprising applying a cement which is a solution/slurry of cementing pitch in nonaqueous organic solvent to at least a portion of the mating surfaces of such electrode joint.
    Type: Grant
    Filed: December 13, 1984
    Date of Patent: March 8, 1988
    Assignee: Union Carbide Corporation
    Inventors: Faramarz Nazem, Irwin C. Lewis, Leonard S. Singer, George S. Chryssomallis
  • Magnetic resonance apparatus
    Patent number: 4455527
    Abstract: A magnetic resonance apparatus uses a first harmonic signal produced by magnetic field modulation as a correction signal and the second harmonic signal to provide a property of a sample.
    Type: Grant
    Filed: June 29, 1982
    Date of Patent: June 19, 1984
    Assignee: Union Carbide Corporation
    Inventor: Leonard S. Singer