Patents by Inventor Barbara R. Sweeting

Barbara R. Sweeting 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).

  • Cubic boron nitride abrasive and process for preparing same
    Patent number: 5194071
    Abstract: The present invention provides methods for forming cubic boron nitride from large particle ideal structure hexagonal boron nitride. Large particles provide improved packing density within the high pressure, high temperature equipment utilized, providing higher yields from conversion processes which utilize a catalyst and those which do not. This large particle ideal structure HBN can be used with conventional high pressure, high temperature processes to provide CBN particulates, composites and compacts.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: March 16, 1993
    Assignee: General Electric Company Inc.
    Inventors: Francis R. Corrigan, Barbara R. Sweeting, Samuel A. Anthony, III