Patents by Inventor Whanjo Lee

Whanjo Lee 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).

  • Compositions for use in molding products from unusable tires
    Patent number: 5635551
    Abstract: A composition for molding products from unusable tires is disclosed. The composition for molding consists of pulverized tires, one or more resins selected from polypropylene resin, low density polyethylene resin and high density polyethylene resin and one or more chemicals selected from the group of acetone, caustic soda, glass wool, ammonium phosphate, starch and pigments. The composition components are well mixed, melted at 230.degree. C. to 350.degree. C. and molded by injecting, extruding or pressing. Products formed from the composition can be used to form various kinds of industrial construction materials which have high strength and smooth surface.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: June 3, 1997
    Inventor: Whanjo Lee