Patents by Inventor Jeong-Kuan Son

Jeong-Kuan Son 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).

  • Method for the improvement of skin wrinkles using retinyl retinoate
    Patent number: 7173062
    Abstract: The present invention relates to a method for the improvement of skin wrinkles using retinal retaliate.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: February 6, 2007
    Assignee: Enprani Co., Ltd.
    Inventors: Young-Soy Roh, Soo-Jong Um, Min-Sook Jeong, Joo-Dong Lee, Hee-Chang Ryoo, Jeong-Kuan Son, Hyo-Jung Kim, Hyuk Kim, Sung-Won Jung, Hye-Sook Han, Si-Ho Park, Seong-Ho Kim
  • Retinol derivatives and process for preparing same
    Publication number: 20040062781
    Abstract: The present invention relates to a new retinyl retinoate, a process for preparing same, a new intermediate which is useful for preparing same, and a cosmetic composition comprising the retinyl retinoate as the active ingredient.
    Type: Application
    Filed: July 16, 2003
    Publication date: April 1, 2004
    Inventors: Young-Soy Roh, Soo-Jong Um, Min-Sook Jeong, Joo-Dong Lee, Hee-Chang Ryoo, Jeong-Kuan Son, Hyo-Jung Kim, Hyuk Kim, Sung-Won Jung, Hye-Sook Han, Si-Ho Park, Seong-Ho Kim