Patents by Inventor Jack W. Liu

Jack W. Liu 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).

  • Clasp for medallions or the like
    Patent number: 5457852
    Abstract: A clasp for a medallion or the like. The clasp includes a tubular member secured to and completely surrounded by the medallion and a safety pin movable between an upright position and a stowed position. The safety pin includes a secured leg and a movable leg, the secured leg being received through the tubular member. The movable leg is movable between an open position and a secured position. Both the safety pin and the tubular member are completely surrounded by the medallion. The safety pin lies flat against the medallion when in the stowed position.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: October 17, 1995
    Assignee: Ho Ho Art & Craft International Co., Inc.
    Inventor: Jack W. Liu
  • Pin collector bag
    Patent number: 4848562
    Abstract: A soft, flexible bag for carrying and displaying collectible items such as pins. The bag contains soft fabric panels for displaying the pins with interleaved soft pouches for storing pins not on display.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: July 18, 1989
    Assignee: Ho Ho Art & Craft International Co., Inc.
    Inventor: Jack W. Liu