Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6881865 | Method for preparing cyclohexyl phenyl ketone from 1,3-butadiene and acrylic acid | Young J. Joo, Jin-Eok Kim, Tae-Yi Kang | 2005-04-19 |
| 6552229 | Method for preparing 4-nitroso-substituted aromatic amine | Young J. Joo, Jin-Eok Kim | 2003-04-22 |
| 6245943 | Method of preparing p-phenylenediamine | Young J. Joo, Jin-Eok Kim | 2001-06-12 |
| 6198001 | Manufacturing method for 4-nitrosoaniline from urea and nitrobenzene | Young J. Joo, Jin-Eok Kim, Kum-Ui Hwang | 2001-03-06 |
| 6156932 | Preparation of 4,4'-dinitrodiphenylamine from urea and nitrobenzene | Young J. Joo, Jin-Eok Kim, Kum-Ui Hwang | 2000-12-05 |
| 6137010 | Method for preparing 4-nitrodiphenylamine and 4-nitrosodiphenylamine from carbanilide | Young J. Joo, Jin-Eok Kim, Kum-Ui Hwang | 2000-10-24 |
| 6130362 | Method for preparing ethylbenzene from 4-vinylcyclohexene | Young J. Joo, Kwang-Chun Park, Chang Min Kim | 2000-10-10 |
| 5770774 | Method for preparing 2-methyl-1,4-naphthoquinone (vitamin K.sub.3) | Young J. Joo, Jin-Eok Kim, Kum-Ui Hwang | 1998-06-23 |
| 5723675 | Method for preparing anthraquinones | Young J. Joo, Jin-Eok Kim, Kum-Ui Hwang | 1998-03-03 |