Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8835687 | Method for preparation of 4,4′-dinitrodiphenylamine and 4,4′-bis(alkylamino)diphenylamine with the base catalyst complex | Jin-Eok Kim, Seoung-IL Kim, Sang Hee Park | 2014-09-16 |
| 8759587 | Method for preparation of 4,4′-dinitrodiphenylamine and 4,4′-bis(alkylamino)diphenylamine by using 4-nitroaniline | Jin-Eok Kim, Seoung-IL Kim, Sang Hee Park | 2014-06-24 |
| 8283477 | Method for preparing N-substituted maleimides | Jin-Eok Kim, Seung Il Kim | 2012-10-09 |
| 7468417 | Method of preparing cyclic olefin copolymer having controlled gel contents | Youngchan Jang, Hyun-Kyung Sung | 2008-12-23 |