Patents by Inventor Lim B. Chen

Lim B. Chen 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).

  • Radiation sensing mobile target game
    Patent number: 4232865
    Abstract: A game has at least one radiation emitter for manipulation by a player and a mobile target carrying a sensing means responsive to receive radiation, the target being moved in response to sensed radiation. In one embodiment there are two sensors each responsive to the radiation emitted by an individual radiation emitter controlled by an individual player. In another embodiment, the mobile target normally moves in a circular path and is responsive to sensed radiation to move in a tangential line of travel for a predetermined time. The mobile target may be provided with two sensors which, through control circuitry, cause the target to travel different predetermined distances dependent on which sensor receives radiation.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: November 11, 1980
    Assignee: Cybiotronics Limited
    Inventors: Lim B. Chen, Lim L. Cher
  • Educational toy
    Patent number: 4173832
    Abstract: The invention relates to an educational toy in which a child is taught to read by association of a written word with an image. In operation the toy has a learning phase in which the image and the corresponding word are displayed and a testing phase in which the word is hidden and a choice of words is presented to the child for selection of the appropriate word.
    Type: Grant
    Filed: March 15, 1978
    Date of Patent: November 13, 1979
    Inventors: Lim B. Chen, Lim L. Cher
  • Telephone station set
    Patent number: D296894
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: July 26, 1988
    Assignee: TIE/Communications, Inc.
    Inventor: Lim B. Chen