Patents by Inventor K. Y. Yeung

K. Y. Yeung 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).

  • Toy track coupling mechanism
    Patent number: 5405080
    Abstract: An toy track coupling mechanism has guidance channels to aid alignment formed on confronting ends of the track sections. A horizontally operating latch prevents unwanted disconnection of the coupled track sections during assembly and play. A laterally adjacent horizontally operating release switch allows easy disassembly of the track sections by disengaging the latch in response to natural hand pressures and movements.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: April 11, 1995
    Assignee: Marchon, Inc.
    Inventors: K. Y. Yeung, Edmond Cheung
  • Novelty eyeglasses
    Patent number: D375127
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: October 29, 1996
    Inventors: Denni F. Rivette, K. Y. Yeung