Patents by Inventor Downey Dang

Downey Dang 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).

  • Patent number: 6415483
    Abstract: A jewelry clasp assembly, attached to a pair of chains for displaying pearls, gemstones, gems, beads, slides, or the like, including a pair of rectangular shaped pins slidably engaged into similarly shaped receiving channels within said clasp housing and secured in place by a threaded retaining pin passing through the receiving channels and the rectangular shaped pins. The jewelry clasp so provided allows the uncomplicated addition and removal of slides, beads, and gems to and from a pair of chains, without compromising security from accidental loss.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: July 9, 2002
    Inventor: Downey Dang