No Un Kwak

US Patent:

D459054, Jun 25, 2002

Filed:

Nov 17, 2000

Appl. No.:

29/132809

Inventors:

No Un Kwak - Silver Spring MD 20904

International Classification:

0205

US Classification:

D 2500

US Patent:

D552201, Oct 2, 2007

Filed:

Apr 19, 2005

Appl. No.:

29/227985

Inventors:

No Un Kwak - Alexandria VA, US

International Classification:

2102

US Classification:

D21765

US Patent:

7325819, Feb 5, 2008

Filed:

Jan 25, 2005

Appl. No.:

11/041729

Inventors:

No Un Kwak - Alexandria VA, US

International Classification:

A63C 17/01

US Classification:

280 87042, 280 8705

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.

US Patent:

20070278758, Dec 6, 2007

Filed:

Jun 2, 2006

Appl. No.:

11/445182

Inventors:

No Un Kwak - Alexandria VA, US

International Classification:

B62M 1/00

US Classification:

280 87042

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.

US Patent:

D3844854, Oct 7, 1997

Filed:

Jul 11, 1996

Appl. No.:

D/056923

Inventors:

No Un Kwak - Silver Spring MD

International Classification:

0205

US Classification:

D 2502