Patents by Inventor Jeung Kwen

Jeung Kwen 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).

  • Cushion mat with free rotational ball
    Publication number: 20050197602
    Abstract: Disclosed is cushion mat with a free rotational ball, the cushion mat including: a plurality of rotational ball units having a rotational ball for rotating whenever a person sitting on the cushion mat is in motion, and a housing for housing the rotational ball; and a connection string for passing through each of the plurality of rotational ball units in zigzags to unite and fix the plurality of rotational ball units.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 8, 2005
    Inventor: Jeung Kwen