Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6441200 | Method for preparing DL-&agr;-tocopherol with a high yield and high purity | Jeong Soo Kim, Young Seek Yoon, Myung Jun Kim, Jun Tae Choi, Byong-Sung Kwak | 2002-08-27 |
| 6384245 | Method for preparing DL-&agr;-tocopherol with high yield | Jeong Soo Kim, Heui-Young Cheong | 2002-05-07 |
| 5990322 | Alpha-tocopherol cyclopropylates, the new vitamin E derivatives and method for producing the same | Heui-Young Cheong | 1999-11-23 |