Patents by Inventor Ning Siu Sin

Ning Siu Sin 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: 8991836
    Abstract: A child seat for a shopping cart comprises a gate, a back rest, two arms and a seat. The arms connect to the gate at one end and the back rest at the other. The arms connect to the gate at an angle, which provides resistance so that the back rest does not fall while buckling the child into the seat. The arms terminate in a chamber, which encompasses the back rest and allows the back rest to fold. One end of the seat terminates in a channel, which encompasses the base wire of the back rest, allowing the back rest to rotate. The second end of the seat terminates in a second channel, which encompasses attachment members on the gate, thereby allowing the seat to rotate. The attachment members include wires, which interact with a step in the second channel to lock the seat to the gate.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: March 31, 2015
    Assignee: AMSA, Inc.
    Inventors: Ivor Michel Walter, Ning Siu Sin
  • Patent number: D746012
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: December 22, 2015
    Assignee: AMSA, Inc.
    Inventors: Ivor Michel Walter, Paul Jensen, Ning Siu Sin, Stefan Berkower, Jonathan Peot
  • Patent number: D798019
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: September 19, 2017
    Assignee: AMSA, Inc.
    Inventors: Ivor Michel Walter, Paul Jensen, Ning Siu Sin, Stefan Berkower, Jonathan Peot
  • Patent number: RE47970
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: May 5, 2020
    Assignee: AMSA, INC.
    Inventors: Ivor Michel Walter, Paul Jensen, Ning Siu Sin, Stefan Berkower, Jonathan Peot