Patents by Inventor Hiu-Yu Vanessa Chan

Hiu-Yu Vanessa Chan 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: 6634610
    Abstract: A self-leveling sign hanging device having a housing hung from the structural support members of suspended ceilings. A cable is stored in the housing on a wind up reel. A spring applies a force to the reel to wind the cable on the reel. The cable exits and returns to the housing forming a loop. At the bottom of the loop is a tubular bracket from which the sign is hung. The cable freely passes through the tubular bracket which allows the tubular bracket to remain horizontally level. Stops are mounted on the cable to restrict the length of cable wound onto the reel thus defining the height that the sign hangs above the floor.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: October 21, 2003
    Assignee: Design & Deliver, Incorporated
    Inventors: Annette Ricci, Heidi Grosowsky, Hiu-Yu Vanessa Chan, Michael Yurkovic