Patents by Inventor Matthew W. Clark

Matthew W. Clark 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).

  • Low toxicity paint stripper
    Patent number: 5990062
    Abstract: A paint-stripping composition comprises, on a weight basis, at least 20% of a benzyl alcohol, together with 5-30% of methylene chloride, 1-10% of hydrogen peroxide and 10-60% of water. The composition may also include auxiliary ingredients such as thickeners, evaporation retardants, surfactants, pH control agents, accelerators, corrosion inhibitors, preservatives, coloring agents, and fragrances.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: November 23, 1999
    Assignee: Gage Products Company
    Inventors: Stephen R. Summerfield, Matthew W. Clark, Neil R. Wilson, Michael E. Moore, Thomas A. Vivian, Scott A. Hofacker