Patents by Inventor Kuen Leung So

Kuen Leung So 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).

  • Slip resistant ruler
    Patent number: 7958646
    Abstract: A ruler including a slip resistant member, wherein the slip resistant member is operable to engage with a working surface to resist the sliding of the ruler when user applies force on the slip resistant member, and is disengaged from the working surface to allow the sliding of the ruler on the working surface when user releases force applied on the slip resistant member.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: June 14, 2011
    Assignee: Captronics Industrial Ltd.
    Inventor: Kuen Leung So
  • Slip Resistant Ruler
    Publication number: 20110088270
    Abstract: A ruler including a slip resistant member, wherein the slip resistant member is operable to engage with a working surface to resist the sliding of the ruler when user applies force on the slip resistant member, and is disengaged from the working surface to allow the sliding of the ruler on the working surface when user releases force applied on the slip resistant member.
    Type: Application
    Filed: July 6, 2010
    Publication date: April 21, 2011
    Inventor: Kuen Leung So