Patents by Inventor Marcel Ayotte

Marcel Ayotte 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).

  • Method for the preservation of timber products
    Patent number: 5506001
    Abstract: A method of treating wood by impregnation of the wood with wood-treating-compositions containing compounds which contain elements selected from copper, chromium and arsenic (CCA) and oxyalkylene polymer additives provides improved properties to the treated wood, better control of oxyalkylene polymer distribution, and reduced leaching of the CCA.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 9, 1996
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Frank M. S. Ma, Marcel Ayotte
  • Compositions for the preservation of timber products
    Patent number: 5460751
    Abstract: Aqueous wood treating compositions, containing compounds which contain elements selected from copper, chromium and arsenic and oxyalkylene polymer additives, provide improved stability to CCA solutions containing additives. In addition, the compositions of the present invention have been found to retard hardening effects associated with wood treated with commercial CCA solutions.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: October 24, 1995
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Frank M. S. Ma, Marcel Ayotte