Patents by Inventor Yeok Sing Sio

Yeok Sing Sio 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).

  • Catch
    Patent number: 7427085
    Abstract: A catch for articles such as sliding or hinged doors, windows, grilles of a swing opening member, the articles having a catch for preventing their unauthorized opening. The catch has inter-engaging projections which are mounted on flexible shafts, so that if the sliding members are pried apart, the flexible shafts deform and the projections remain engaged and prevent unauthorized opening of the sliding article.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: September 23, 2008
    Inventor: Yeok Sing Sio
  • Catch
    Publication number: 20040207216
    Abstract: A catch for articles such as sliding or hinged doors, windows, grilles of a swing opening member, the articles having a catch for preventing their unauthorized opening. The catch has inter-engaging projections which are mounted on flexible shafts, so that if the sliding members are pried apart, the flexible shafts deform and the projections remain engaged and prevent unauthorized opening of the sliding article.
    Type: Application
    Filed: April 9, 2004
    Publication date: October 21, 2004
    Inventor: Yeok Sing Sio