Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6384245 | Method for preparing DL-&agr;-tocopherol with high yield | Jeong Soo Kim, Sijoon Lee | 2002-05-07 |
| 5990322 | Alpha-tocopherol cyclopropylates, the new vitamin E derivatives and method for producing the same | Sijoon Lee | 1999-11-23 |