Patents by Inventor Cheryl M. Maritan

Cheryl M. Maritan 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).

  • Improved stabilization of wood preservative solutions and preservation of wood by such solutions
    Patent number: 4847002
    Abstract: A wood preservative solution comprising water, hexavalent chromium, copper and arsenic can be stabilized against precipitation by the addition of fluorine ion, thereby enhancing the useful life and safety of the solution. Fluoride salts like cerium fluoride, sodium fluoride and calcium fluoride are suitable sources for fluorine ion in such a solution. Wood treated with the preservative solution displays increased penetration, distribution and retention of chromium, copper and arsenic.
    Type: Grant
    Filed: August 14, 1987
    Date of Patent: July 11, 1989
    Assignee: Bell Canada
    Inventors: William P. Trumble, Cheryl M. Maritan