Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5916915 | Water-in-stable L-ascorbic acid derivative and a method for preparation thereof, and a skin-whitening cosmetic composition containing the same | Jong Eon Hong, Ki-Hwa Lee, Jun Chul Cho, Jung-No Lee, Ji Min Chun +3 more | 1999-06-29 |