Patents by Inventor Donald David Stone

Donald David Stone 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 increasing the wet coefficient of friction of a thermoplastic elastomer and composition therefor
    Patent number: 8779025
    Abstract: A method for increasing the wet coefficient of friction of a thermoplastic elastomer includes adding various ingredients to the thermoplastic elastomer. In one embodiment microcrystalline wax, amorphous polyalphaolefin ethylene copolymer, and a copolymer ethylene/propylene and olefins are added to the thermoplastic elastomer. And in another embodiment, microcrystalline wax and copolymer ethylene/propylene and olefins are added to the thermoplastic elastomer. The above compositions are formed into a sheet which can be used alone as a slip-resistant pad, or can be applied to a desired surface (such as that of a surfboard).
    Type: Grant
    Filed: November 12, 2011
    Date of Patent: July 15, 2014
    Inventor: Donald David Stone