Patents by Inventor Kenneth W. French

Kenneth W. French 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).

  • Method for fabricating large cross section injection molded ceramic shapes
    Patent number: 4708838
    Abstract: A method for fabricating large, greater than one centimeter cross section, high density silicon nitride by injection molding process has been developed. The method requires use of a controlled starting powder, a novel binder removal process, a prefiring step followed by isopressing and conventional sintering.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: November 24, 1987
    Assignee: GTE Laboratories Incorporated
    Inventors: Gautam Bandyopadhyay, Kenneth W. French, Leslie J. Bowen, Jeffrey T. Neil
  • Method for injection molding and removing binder from large cross section ceramic shapes
    Patent number: 4704242
    Abstract: A method for fabricating injection molded ceramic shapes suitable for densification by sintering or hot isostatic pressing has been developed. The method is applicable to ceramic articles of large, complex cross sections, greater than one centimeter, which are generally prone to external cracking during binder removal. The method requires use of a controlled starting powder, and a novel binder removal process to obtain an externally crack-free article.
    Type: Grant
    Filed: March 26, 1985
    Date of Patent: November 3, 1987
    Assignee: GTE Laboratories Incorporated
    Inventors: Gautam Bandyopadhyay, Kenneth W. French
  • Composition for injection molding
    Patent number: 4456713
    Abstract: A composition for injection molding a sinterable material such as silicon nitride.This composition includes a binder system which imparts a greater flexibility to the, as molded, green body. The binder-system contains a major component of paraffin wax, a minor component of epoxy resin, and a surfactant.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: June 26, 1984
    Assignee: GTE Laboratories Incorporated
    Inventors: Kenneth W. French, Jeffrey T. Neil, Larry L. Turnbaugh