Patents by Inventor Fredrick D. Brown

Fredrick D. Brown 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).

  • Coated abrasive products employing nonabrasive diluent grains
    Patent number: 5011512
    Abstract: A coated abrasive article comprised of a blend of premium abrasive grains and nonabrasive diluent grains adhered to a backing material by a resinous binder. The article has an unexpected abrading efficiency, performing equal to, or superior to, a coated abrasive article containing only premium abrasive grains.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: April 30, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Vernon M. Wald, Richard A. Masson, Fredrick D. Brown, David E. Broberg