Patents Examined by Stuart Hendickson
  • Method for controlling the particle size distribution in the production of multicrystalline cubic boron nitride
    Patent number: 5985228
    Abstract: A method is provided wherein hexagonal boron nitride particulates are converted directly into cubic boron nitride particles or agglomerated masses which can be easily milled to the desired size due to the presence of an inert powder during the conversion to reduce interparticle bonding.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: November 16, 1999
    Assignee: General Electric Company
    Inventors: Frank Raymond Corrigan, Sam Anthony, John Michael Zarichansky