Patents by Inventor Lloyd N. Cosby

Lloyd N. Cosby 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).

  • Drain gutter debris guard and method of making
    Patent number: 5406754
    Abstract: An improved gutter guard comprising a fine screen support by a structural stiffening matrix support. The fine screen prevents the penetration of even fine debris while the stiffening matrix support strengthens the fine screen against bending in order to bridge the opening of a conventional gutter.
    Type: Grant
    Filed: February 3, 1993
    Date of Patent: April 18, 1995
    Inventor: Lloyd N. Cosby