Patents by Inventor Yu-Hsin Kao

Yu-Hsin Kao 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).

  • Universal lighting fixture replaceable with diversified lamps
    Patent number: 5091834
    Abstract: A lighting fixture includes: a first lamp secured with a coupling plug which is detachably engageable with a coupling socket formed on a supporting base so that a second or another lamp provided with a coupling plug may be optionally chosen to substitute the first lamp by dismantling the first lamp from the base so as for enhancing diversified lighting or decorative purposes of the lighting fixture.
    Type: Grant
    Filed: April 19, 1991
    Date of Patent: February 25, 1992
    Inventors: Yu-Tai Kao, Yu-Hsin Kao
  • Lighting fixture
    Patent number: D442311
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: May 15, 2001
    Inventors: Yu-Tai Kao, Yu-Hsin Kao
  • Lighting fixture
    Patent number: D500156
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: December 21, 2004
    Inventor: Yu-Hsin Kao