Patents by Inventor Zuo H. Liu

Zuo H. Liu 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).

  • Rotatable lighting equipment
    Patent number: 5309338
    Abstract: A lighting device includes a housing disposed on a base for accommodating perfume having a fragrance, a casing disposed on the housing for accommodating an electric fan in order to circulate the fragrance of the perfume from the housing toward the casing and outward of the casing, a motor and gear disposed on the casing, a cover disposed on the casing, and a light bulb disposed in the cover. The cover is rotated by the motor.
    Type: Grant
    Filed: October 29, 1992
    Date of Patent: May 3, 1994
    Inventor: Zuo H. Liu
  • Indicating light for cycles
    Patent number: 5247431
    Abstract: An indicating device is disposed in the end portion of the handlebar of a bicycle for indicating the turning of the bicycle, the device includes a barrel engaged in the handlebar, a light bulb disposed in the outer end of the barrel, a battery disposed in the barrel for energizing the light bulb, and a switch connected between the light bulb and the battery for controlling the energizing of the light bulb.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: September 21, 1993
    Inventor: Zuo H. Liu