Patents by Inventor Chunling Zhao

Chunling Zhao 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).

  • WATER SENSOR APPARATUS
    Publication number: 20080251601
    Abstract: A water sensor apparatus used in connection with a watering system. The water sensor apparatus includes a main housing comprising an inlet and an outlet. A valve mechanism is provided inside the main housing. The valve mechanism opens and closes the outlet of the main housing in response to a water level collected in the main housing and a water pressure entering the inlet of the main housing.
    Type: Application
    Filed: March 12, 2008
    Publication date: October 16, 2008
    Applicant: MELNOR, INC.
    Inventors: Juergen NIES, Ha Van DUONG, Chunling ZHAO