Patents by Inventor George A. Brons

George A. Brons 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).

  • Abrasive article
    Patent number: 5114438
    Abstract: An abrasive article comprises abrasive particles bonded to microporous material wherein the microporous material comprises (a) a matrix consisting essentially of thermoplastic organic polymer, (b) a large proportion of finely divided water-insoluble siliceous filler, and (c) a large void volume.
    Type: Grant
    Filed: October 29, 1990
    Date of Patent: May 19, 1992
    Assignee: PPG Industries, Inc.
    Inventors: Dennis D. Leatherman, James J. McGinley, Daniel E. Adams, George A. Brons