Patents by Inventor David M. Duhon

David M. Duhon 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).

  • Patent number: 7041356
    Abstract: A portable chemical spill control device includes an expansive sheet of absorbent material having upper and lower surfaces and a periphery that defines a circumference. The sheet of material is of a material that is resistant to fluid attacks so that spills deposited upon the upper surface are contained on the upper surface. A peripheral bead includes a foldable portion that extends around the expansive sheet of material, the bead including an elongated tensile member and a folded portion that holds the elongated tensile member to the absorbent sheet of material. A connection joins the peripheral bead to the expansive sheet of absorbent material in a configuration that envelops the tensile member with the foldable portion.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: May 9, 2006
    Inventors: David M. Duhon, Don E. Page, Jr.