Patents by Inventor Kyung W. Suh

Kyung W. Suh 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).

  • Extrusion of thermoplastic foam
    Patent number: 3966381
    Abstract: Thermoplastic foam plank is prepared by extrusion from a slotted die between a pair of generally parallel opposed forming plates. A substantial improvement in physical properties is obtained by using curved supports which engage the foaming gel generally adjacent the ends of the die opening and edges of the freshly extruded sheet.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: June 29, 1976
    Assignee: The Dow Chemical Company
    Inventor: Kyung W. Suh