Patents by Inventor Hsien-Jung Tseng

Hsien-Jung Tseng 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).

  • Fixing device for a removable artificial denture
    Patent number: 5997300
    Abstract: A fixing device for a removable denture mounted on the gingivals of an upper jaw or a lower jaw of a mouth. A stake is anchored in the base or root of the tooth, and a covering cup is mounted on the denture. An engaging member is placed in the cup chamber, the engaging member being a soft plastic annular member. When a ball head on the stake is engaged therein, the denture is fixed in place, the denture can also be drawn out for removal, so that mounting and removal of the denture at the area missing teeth is convenient.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: December 7, 1999
    Inventor: Hsien-Jung Tseng
  • Fixing device for a removable denture
    Patent number: 5871357
    Abstract: A fixing device for a removable denture mounted on the gingivals of an upper jaw or a lower jaw of a mouth. A stake is anchored in the base or root of the tooth, and a covering cup is mounted on the denture. An engaging member is placed in the cup chamber, the engaging member being a pair of magnetic members attracting each other because of their opposite magnetic polarities. The engaging member may also be a soft plastic annular member. When a ball head on the stake is engaged therein, the denture is fixed in place.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: February 16, 1999
    Inventor: Hsien-Jung Tseng