Patents by Inventor Trung K. Phung

Trung K. Phung 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).

  • Process for preparing bitumen-polymer compositions
    Patent number: 4145322
    Abstract: The present invention is related to a novel process for preparing bitumen-polymer compositions. These compositions contain block copolymers comprising diene and styrene groups.The compositions present excellent mechanical properties even at low temperatures.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: March 20, 1979
    Assignee: Elf Union
    Inventors: Paul Maldonado, Jean Mas, Trung K. Phung