Patents by Inventor Zhi-Zhong Yuan

Zhi-Zhong Yuan 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 of recycling solid waste polystyrene packing materials
    Patent number: 7563829
    Abstract: A method of treating and recycling solid waste polystyrene packing material by dissolving the solid waste polystyrene packing material in a dimethylbenzene based solvent to obtain a homogenous and viscous fluid which may be used as an adhesive material or a coating material.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: July 21, 2009
    Inventor: Zhi-Zhong Yuan
  • Method of recycling solid waste polystyrene packing materials
    Publication number: 20070249741
    Abstract: A method of treating and recycling solid waste polystyrene packing material by dissolving the solid waste polystyrene packing material in a dimethylbenzene based solvent to obtain a homogenous and viscous fluid which may be used as an adhesive material or a coating material.
    Type: Application
    Filed: January 17, 2006
    Publication date: October 25, 2007
    Inventor: Zhi-Zhong Yuan