Patents by Inventor Dong S. Rha

Dong S. Rha 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).

  • Textile treatment
    Patent number: 5494747
    Abstract: Textile fabrics, yarns and cords are impregnated with rubber, resin and particulate materials by dipping in an aqueous dispersion comprising an aqueous rubber latex, resin and the particulate material, the dispersion further containing a very minor amount of a water-soluble silicate, such as sodium silicate. After drying, the products can be used as reinforcement for mechanical rubber goods and friction materials such as clutch facings and the like.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: February 27, 1996
    Assignee: G B Tools & Components Exports Limited
    Inventor: Dong S. Rha