Patents by Inventor Kwang N. Wang

Kwang N. Wang 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).

  • Control body for Christmas tree
    Patent number: 4878154
    Abstract: A control body includes a circuit board, a housing having three engaging sets and a base having electric wire guiding grooves each of which includes three spaced radially arcuate platelets, a cover plate having three pairs of barbed legs respectively engaging with the three engaging sets, an end cover, a switch disk, a coupling piece, and a rotating disk so that the control body can be closed though a mechanically engaging style to have a water-proof effect.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: October 31, 1989
    Inventor: Kwang N. Wang