Chang Hoon Oh

US Patent:

20090071492, Mar 19, 2009

Filed:

Sep 13, 2007

Appl. No.:

11/900662

Inventors:

Chang Hyun Oh - Glendale CA, US

International Classification:

A41G 5/00

US Classification:

132201, 132 53

Abstract:

The present invention comprises various hair extension methods for implementing without glue. Our system does not require heat or chemicals for attachment or strong solvents for removal. Anyone familiar with the hair industry knows what damage that these harsh chemicals can cause. This invention looks and feels completely natural and are easy to wash and style and also can be colored or permed. Our system is so gentle that it can be used on the most sensitive and difficult areas such as the top area of head. It is as light as feather, you won't even know that you're wearing it.This hair extension method can add more length and volume without the discomfort of weaves and glues. It's gentle, light and ultra thin. User can even add hair to the sensitive top area.

US Patent:

20130255707, Oct 3, 2013

Filed:

Sep 13, 2007

Appl. No.:

11/900661

Inventors:

Chang Hyun Oh - Glendale CA, US

International Classification:

A41G 5/00

US Classification:

132201, 132 53

Abstract:

This invention aims to offer extension hair with multiple knots and its manufacturing method that fixes down the connecting string and the extension hair using the knot method of tying the connecting string on the extension hair, and maintains the knot for long periods of time without the extension hair attached in natural hair slipping by creating the knot using the above connecting string.