Patents by Inventor Mimi Liu

Mimi 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).

  • Watering device
    Patent number: 7707770
    Abstract: A watering device for providing water to a sub-surface level is provided. The watering device includes a body portion for distributing water radially therefrom and along its length. The watering device includes an irrigation assembly for emitting water from a water source, the irrigation assembly emitting the water within the watering device, and the water then being distributed through the body portion to surrounding soil. The irrigation assembly may be supported by the body portion. The irrigation assembly may include a bubbler, and may include a check valve. The device may include a top cap including retaining structure for providing a generally vertical or other desired orientation to the irrigation assembly. The device may further include a bottom cap that generally restricts the flow of water out of the bottom of the device and cooperates with body portion to direct water radially from the device.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: May 4, 2010
    Inventors: Mimi Liu, Kevin G. O'Brien, Mark M. Ensworth
  • Watering device
    Publication number: 20060112626
    Abstract: A watering device for providing water to a sub-surface level is provided. The watering device includes a body portion for distributing water radially therefrom and along its length. The watering device includes an irrigation assembly for emitting water from a water source, the irrigation assembly emitting the water within the watering device, and the water then being distributed through the body portion to surrounding soil. The irrigation assembly may be supported by the body portion. The irrigation assembly may include a bubbler, and may include a check valve. The device may include a top cap including retaining structure for providing a generally vertical or other desired orientation to the irrigation assembly. The device may further include a bottom cap that generally restricts the flow of water out of the bottom of the device and cooperates with body portion to direct water radially from the device.
    Type: Application
    Filed: November 12, 2004
    Publication date: June 1, 2006
    Inventors: Mimi Liu, Kevin O'Brien, Mark Ensworth
  • Watering device
    Patent number: D524611
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: July 11, 2006
    Assignee: Rain Bird Corporation
    Inventors: Mimi Liu, Kevin G. O'Brien, Mark M. Ensworth
  • Watering device
    Patent number: D527439
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: August 29, 2006
    Assignee: Rain Bird Corporation
    Inventors: Mimi Liu, Kevin G. O'Brien, Mark M. Ensworth