Patents by Inventor Lu Leng

Lu Leng 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).

  • Table top
    Publication number: 20050223951
    Abstract: A table top includes an exterior shell providing an interior region. An interior frame and a core are located in the interior region. The exterior shell includes top and bottom sheets and a perimeter bumper.
    Type: Application
    Filed: December 1, 2004
    Publication date: October 13, 2005
    Inventor: Lu Leng
  • Lockable ladder hinge
    Publication number: 20050121260
    Abstract: A lockable hinge includes a first and second hinge member, a lock, and an actuator. The lockable hinge is coupled to a pair of ladder-leg sections and is arranged to allow the ladder-leg sections to move among closed-ladder, trestle-ladder, and straight-ladder positions. The lock is used to lock the hinge members to cause the ladder-leg sections to lock in the closed-ladder, trestle-ladder and straight-ladder positions.
    Type: Application
    Filed: November 10, 2004
    Publication date: June 9, 2005
    Inventor: Lu Leng
  • Table top
    Publication number: 20050081760
    Abstract: A table top includes an exterior shell providing an interior region. An interior frame and a core are located in the interior region. The exterior shell includes top and bottom sheets and a perimeter bumper.
    Type: Application
    Filed: April 14, 2004
    Publication date: April 21, 2005
    Inventor: Lu Leng