Patents by Inventor YiuTak Leung

YiuTak Leung 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).

  • Patent number: 8632273
    Abstract: A water draining method comprises water draining adapted for roads, mountains, mountainsides, protective hillsides, retaining walls, grass slopes, airport runways, highways, football fields, grass slopes, stone dams, embankments, landfills, farms, irrigating and draining systems, characterized in that: a. installing receiving members in a pervious bed; b. arranging draining pipes in the receiving members; c. disposing draining ditches on one or two ends of a drain tube; d. drawing excessive water to the draining pipes by using drawing ports of the drain tube and draining the water into the draining ditch via an end portion of the drain tube. Thereby, the present invention allows to obtain rain collecting, impurities filtering, irrigating, draining, anti-leaking, and warning functions.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: January 21, 2014
    Inventor: YiuTak Leung
  • Publication number: 20110174378
    Abstract: A water draining method comprises water draining adapted for roads, mountains, mountainsides, protective hillsides, retaining walls, grass slopes, airport runways, highways, football fields, grass slopes, stone dams, embankments, landfills, farms, irrigating and draining systems, characterized in that: a. installing receiving members in a pervious bed; b. arranging draining pipes in the receiving members; c. disposing draining ditches on one or two ends of a drain tube; d. drawing excessive water to the draining pipes by using drawing ports of the drain tube and draining the water into the draining ditch via an end portion of the drain tube. Thereby, the present invention allows to obtain rain collecting, impurities filtering, irrigating, draining, anti-leaking, and warning functions.
    Type: Application
    Filed: May 9, 2008
    Publication date: July 21, 2011
    Inventor: YiuTak Leung