Patents by Inventor William Hsien-Kuang Wang

William Hsien-Kuang Wang 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).

  • Double-ended heading punch
    Patent number: 4094185
    Abstract: A punch for forming a fastener head has a shaped projection at each end and is releasably secured in a holder with one end abutting against a ledge on the inside of the holder and the other end extending beyond the holder. The shaped projections are formed simultaneously by a pair of hobs in one press stroke.
    Type: Grant
    Filed: July 5, 1977
    Date of Patent: June 13, 1978
    Assignee: Procor Limited
    Inventor: William Hsien-Kuang Wang