Patents by Inventor Stephen M. Freeman

Stephen M. Freeman 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).

  • Fiber-reinforced magnesium oxychloride bond
    Patent number: 5679119
    Abstract: Magnesium oxychloride cement bonds reinforced with selected fibers have improved resistance to cracking and disintegration in use. Particular embodiments include fiber-reinforced abrasive tools based on these bonds which have improved bond integrity in dry-grinding applications.
    Type: Grant
    Filed: July 17, 1996
    Date of Patent: October 21, 1997
    Assignee: Western Atlas
    Inventors: Stephen M. Freeman, David B. Hanson
  • Fiber-reinforced magnesium oxychloride bond
    Patent number: 5571317
    Abstract: Magnesite bonds reinforced with selected fibers have improved resistance to cracking and disintegration in use. Particular embodiments include fiber-reinforced abrasive tools based on magnesite bonds which have improved bond integrity in dry-grinding applications.
    Type: Grant
    Filed: February 14, 1995
    Date of Patent: November 5, 1996
    Assignee: Western Atlas Inc.
    Inventors: Stephen M. Freeman, David B Hanson