Patents by Inventor Lau Kong Ping

Lau Kong Ping 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).

  • Vacuum sealing bag
    Patent number: 7938581
    Abstract: A vacuum sealing bag includes first and second bag panels overlappedly affixed in an edge to edge manner to form a storing cavity between the first and second bag panels and an opening communicating with the storing cavity, and an air sealing arrangement having a plurality of first air channels longitudinally formed on an inner side of the first bag panel and a plurality of second air channels transversely formed on an inner side of the second bag panel in such a manner that when the inner side of the first bag panel is overlapped on the inner side of the second bag panel, the first air channels are communicatively intersected with the second air channels for guiding air within the storing cavity to outside, so as to air-seal the storing cavity in a vacuum manner.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: May 10, 2011
    Inventor: Lau Kong Ping
  • Vacuum sealing bag
    Publication number: 20080137996
    Abstract: A vacuum sealing bag includes first and second bag panels overlappedly affixed in an edge to edge manner to form a storing cavity between the first and second bag panels and an opening communicating with the storing cavity, and an air sealing arrangement having a plurality of first air channels longitudinally formed on an inner side of the first bag panel and a plurality of second air channels transversely formed on an inner side of the second bag panel in such a manner that when the inner side of the first bag panel is overlapped on the inner side of the second bag panel, the first air channels are communicatively intersected with the second air channels for guiding air within the storing cavity to outside, so as to air-seal the storing cavity in a vacuum manner.
    Type: Application
    Filed: November 15, 2007
    Publication date: June 12, 2008
    Inventor: Lau Kong Ping