Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6093836 | 1,3-diphenylpropane derivatives having inhibitory activity against tyrosinase and process for preparation thereof | Young-ho Rhee, Kyung-Ae Kim, Hyun Ho Lee, Sang Hwa Lee | 2000-07-25 |
| 5534637 | Starting materials for prepartion of sulfonylurea derivatives and process for preparing the same | In B. Chung, Jae C. Lee, Byoung W. Suh, Jong S. Sa, Tae H. Heo | 1996-07-09 |
| 5525730 | Processes for preparation of sulfonylurea derivatives | In B. Chung, Jae C. Lee, Byoung W. Suh, Jong S. Sa, Tae H. Heo | 1996-06-11 |
| 5480993 | Process for preparation of sulfonylurea derivatives and intermediates for the process and process for preparing the same | In B. Chung, Jae C. Lee, Byoung W. Suh, Jong S. Sa, Tae H. Heo | 1996-01-02 |
| 5468896 | Dithiocarbazate compounds | In B. Jhung, Jae C. Lee, Jong S. Sa, Sung Jun Jo, Jin-Ho Cho | 1995-11-21 |
| 5466854 | Processes for preparation of dithiocarbazates | In B. Jhung, Jae C. Lee, Jong S. Sa, Sung Jun Jo, Jin-Ho Cho | 1995-11-14 |
| 5416220 | Processes for preparation of 5-pyrazolemercaptan derivatives | In B. Jhung, Jae C. Lee, Jong S. Sa, Sung Jun Jo, Jin-Ho Cho | 1995-05-16 |
| 5405965 | Processes for preparation of 5-pyrazolemercaptan derivatives and intermediates thereof | In B. Jhung, Jae C. Lee, Jong S. Sa, Sung Jun Jo, Jin-Ho Cho | 1995-04-11 |