Patents by Inventor S. P. Ko

S. P. Ko 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).

  • Compressible mold plunger
    Patent number: 5520874
    Abstract: A plunger (22), used in a standard mold, has a movable piston (23) and spring (24) that reduce the cull space when piston (23) is pressed downward into the cull mold compound.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: May 28, 1996
    Assignee: Texas Instruments Incorporated
    Inventors: C. H. Chou, T. H. Wang, C. S. Chen, Y. C. Chen, S. P. Ko