Patents by Inventor Chye-Tao Chang

Chye-Tao Chang 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).

  • High pressure-high temperature pipe gasket
    Patent number: 6250646
    Abstract: A high pressure-high temperature gasket for high pressure-high temperature pipe is disclosed. The high pressure-high temperature gasket comprises a hollow annular member defining an interior tunnel. The interior tunnel is filled with a stuffing to enhance the axial resilience of the annular member such that the high pressure-high temperature gasket can seal the joint between two high pressure-high temperature pipes, and be reused so as to decrease the coat of using the gasket.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: June 26, 2001
    Inventor: Chye-Tao Chang