Patents by Inventor Wen W. Tseng

Wen W. Tseng 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 molding utilizing compression sleeve
    Patent number: 5320700
    Abstract: A high temperature film wrapping is used to wrap thermoplastic materials before they are molded. The thermoplastic material can then be molded by applying heat and pressure and the resulting thermoplastic material will contain reduced cracks and voids compared with thermoplastic materials molded without the wrapping.
    Type: Grant
    Filed: April 15, 1991
    Date of Patent: June 14, 1994
    Assignee: Phillips Petroleum Company
    Inventors: Charles M. Hall, Wen W. Tseng, Ralph Beavers