Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6060612 | Ceramide-like compounds and a method for preparation thereof, and a cosmetic composition containing the same | Myeung Su Ku, Bo Sub Lee, Young Hun Byon, Duk Hee Kim, Sang Rhin Lee +8 more | 2000-05-09 |
| 5916915 | Water-in-stable L-ascorbic acid derivative and a method for preparation thereof, and a skin-whitening cosmetic composition containing the same | Ki-Hwa Lee, Jun Chul Cho, Jang Sob Lee, Jung-No Lee, Ji Min Chun +3 more | 1999-06-29 |
| 5723645 | Method for preparing 3-aminopropane phosphoric acid | Ok Sub Lee, Young Hun Byon, Bo Sub Lee, Jae Suk Ko, Yun Ki Cho +1 more | 1998-03-03 |