Patents by Inventor No Un Kwak

No Un Kwak 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: 7325819
    Abstract: A skateboard apparatus wherein a torsion bar containing an inner pipe, outer pipes and flexible, rubber inserts therebetween assist the user in determining the direction and speed of the skateboard. The torsion bar is connected to platforms on which the user places his feet, and the underside of said platforms contain casters which enable the skateboard and its user to move in linear or non-linear directions as desired with just one initial push from the ground.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: February 5, 2008
    Inventor: No Un Kwak
  • Publication number: 20070278758
    Abstract: A skateboard apparatus wherein an attached front wheel rotatable to predetermined limits through use of a stop mechanism assists the user in determining the direction of the skateboard. One or more rear wheels connected to, and whose location is adjustable on, said skateboard rotates unidirectionally frontward or backward, and a brake system attached to the underside of said platform may be used to retard the speed of said skateboard.
    Type: Application
    Filed: June 2, 2006
    Publication date: December 6, 2007
    Inventor: No Un Kwak
  • Patent number: D459054
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: June 25, 2002
    Inventor: No Un Kwak
  • Patent number: D552201
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: October 2, 2007
    Inventor: No Un Kwak
  • Patent number: D384485
    Type: Grant
    Filed: July 11, 1996
    Date of Patent: October 7, 1997
    Inventor: No Un Kwak