Young Hae Chu

US Patent:

6470599, Oct 29, 2002

Filed:

Apr 23, 2001

Appl. No.:

09/840355

Inventors:

Young Chu - Santa Fe Springs CA 90670

International Classification:

A43B 300

US Classification:

36113, 36107, 36114, 36 31, 36 76 C, 36 75 R

Abstract:

A climbing shoe includes an inner sole, an outer sole and a molded middle sole between the inner sole and the outer sole. The middle sole is concave in shape. The outer sole conforms to the concave shape of the middle sole. The concave shape allows the outer sole to hook on a rocky ledge. The molded middle sole provides a structure that causes the concave outer sole to substantially maintain the concave shape when pressure is applied to the outer sole.

US Patent:

D516783, Mar 14, 2006

Filed:

Feb 17, 2004

Appl. No.:

29/199528

Inventors:

Young Chu - Fullerton CA, US

International Classification:

0299

US Classification:

D 2964, D2946, D2961

US Patent:

7107656, Sep 19, 2006

Filed:

Apr 14, 2004

Appl. No.:

10/823899

Inventors:

Young Chu - Fullerton CA, US

International Classification:

A44B 11/00

US Classification:

24198, 24200

Abstract:

A safety buckle comprising a substantially flat elongated body comprising a first distal end opposite to a second distal end, the elongated body having a front surface and a back surface; and first, second and third slots, respectively formed in the elongated body, wherein the first, second and third slots are approximately parallel in direction to each other, so that a first blade is formed between the first and second slots, and a second blade is formed between the second and third slots, wherein the second and third slots are configured to receive a first end of a strap by way the first end being tied around the second blade, and wherein the first and second slots are configured to receive a second opposite end of the strap by way of the second end being wrapped around the first blade.

US Patent:

20030037463, Feb 27, 2003

Filed:

Aug 21, 2001

Appl. No.:

09/935121

Inventors:

Young Chu - Santa Fe Springs CA, US

International Classification:

A43C015/00

US Classification:

036/103000, 036/05900R, 036/113000, 036/05900C

Abstract:

A climbing shoe includes an upper portion and an outer sole attached to the upper portion. The outer sole has an interior area, a raised exterior area, and a hooking rim. The hooking rim can hook on a rocky ledge. A climbing shoe also includes teeth attached to the hooking rim. The teeth can vary in shape. The teeth are often a saw-tooth shape or a rounded half-moon shape.

US Patent:

20030115776, Jun 26, 2003

Filed:

Dec 21, 2001

Appl. No.:

10/029092

Inventors:

Young Chu - Fullerton CA, US

International Classification:

A43B013/04

US Classification:

036/113000, 036/05900R, 036/03200R

Abstract:

A climbing shoe includes an upper portion and an outer sole attached to the upper portion. The outer sole of the toe part has an edge area, a mid-area, and an interior area. The edge area will be made of rubber polymer with a hardness greater than the mid-area, and the mid-area will be made of rubber polymer with a hardness greater than the interior area. The edge area and mid-area will be substantially U-shaped along the toe part of the outer sole of the climbing shoes.

US Patent:

20030172555, Sep 18, 2003

Filed:

Mar 15, 2002

Appl. No.:

10/098860

Inventors:

Young Chu - Fullerton CA, US

International Classification:

A43B007/26

US Classification:

036/113000, 036/094000

Abstract:

An internal split toe with creased sole for rock-climbing shoes includes an upper portion, internal wall and a creased sole under the toe area attached to the upper portion. An internal wall separates the area for the big toe and the other toes. The internal wall is attached to the sole and the upper portion. The internal wall ensures a creased sole under the toe area. An internal split toe with creased sole for the rock-climbing shoes allows rock-climbers to maximize the rock surface contact with the sole by hooking and wrapping around uneven and protruding rock surfaces preventing the problems of bulging and loss of sensitivity.

US Patent:

20030196350, Oct 23, 2003

Filed:

Apr 23, 2002

Appl. No.:

10/128074

Inventors:

Young Chu - Fullerton CA, US

International Classification:

A43B003/00

US Classification:

036/058500, 036/113000, 036/092000

Abstract:

A climbing shoe with a sling shot band that wraps around the heel part of the climbing shoe and is connected to the toe part. The sling shot band is set at an angle substantially the same as the sole to increase comfort and fitness of the climbing shoe.

US Patent:

20030196354, Oct 23, 2003

Filed:

Apr 22, 2002

Appl. No.:

10/127666

Inventors:

Young Chu - Fullerton CA, US

International Classification:

A43B023/08
A43B021/00

US Classification:

036/113000, 036/069000, 036/03400R

Abstract:

A climbing shoe with a hooking teeth heel that wraps around the heel part of the climbing shoe and is connected to the upper portion. The hooking teeth are made of multiple lateral ridges that will improve the grip of the foot during heel maneuvers.