Patents by Inventor Inman Youn

Inman Youn 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).

  • Multi display board
    Patent number: 7584562
    Abstract: An advertising board capable of displaying advertising during both day and night hours. The board has an blocking panel having printed advertising material on one face layered on the front of PCB base plates installed with combination of LED devices. During night time hours the advertising board displays various moving advertising pictures through the several LED devices which are aligned with holes in the blocking panel.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: September 8, 2009
    Assignee: AP Electronics Co., Ltd.
    Inventor: Inman Youn
  • Multi display board
    Publication number: 20040255496
    Abstract: An advertising board capable of displaying advertising during both day and night hours. The board has an blocking panel having printed advertising material on one face layered on the front of PCB base plates installed with combination of LED devices. During night time hours the advertising board displays various moving advertising pictures through the several LED devices which are aligned with holes in the blocking panel.
    Type: Application
    Filed: August 12, 2004
    Publication date: December 23, 2004
    Inventor: Inman Youn