Patents by Inventor James Murray Gillis

James Murray Gillis 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 of producing glass and of using glass in cutting materials
    Patent number: 6783088
    Abstract: A method of producing glass as an abrasive media for cutting materials includes the steps of providing a glass feed stock and reducing the glass feed stock in size to produce glass particles with a high angularity and low aspect ratio. The method also includes the step of classifying the glass particles to remove at least one of coarses and fines. The method further includes the steps of size classifying the glass particles to produce an abrasive media with a predetermined size classification for use in abrasivejet cutting of materials.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: August 31, 2004
    Inventors: James Murray Gillis, Jiann-Yang Hwang