Patents by Inventor Lon F. Risley

Lon F. Risley 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).

  • Filler and artificial stone made therewith
    Patent number: 5286290
    Abstract: Alumina trihydrate is dehydrated and rehydrated with a solution of dye, then dried to make colored alumina trihydrate which is distributed in a resin matrix to make solid decorative materials, such as artificial granite having excellent fire retardance.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: February 15, 1994
    Assignee: Avonite, Inc.
    Inventor: Lon F. Risley
  • Dry paint stripping method
    Patent number: 4947591
    Abstract: Paint is removed from surfaces by impacting it with particles of cured unsaturated polyester including about 10-20 weight weight percent methyl methacrylate, the particles having a low ratio of longest to shortest dimension and an average of at least about 40 facets.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: August 14, 1990
    Assignee: Avonite, Inc.
    Inventor: Lon F. Risley