Patents by Inventor Chang Wen-Shyong

Chang Wen-Shyong 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).

  • Scanner casing
    Patent number: 5838540
    Abstract: A scanner casing has a lower housing and an upper housing covering the lower housing. A glue material is adhered on a lower periphery edge of the lower housing. The lower housing is adhered on a scanner. Four threaded fastening portions are disposed on four upper corners of the lower housing. Each of the threaded fastening portions has a threaded hole. Four hollow fastening portions are disposed on four upper corners of the upper housing. Each threaded hole matches each corresponding hollow fastening portion to be fastened by a bolt.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: November 17, 1998
    Inventor: Chang Wen-Shyong