Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8580964 | Cinchona-based bifucntional organocatalysts and method for preparing chiral hemiesters using the same | Sang Ho Oh, Ho Sik Rho, Ji-Woong Lee, Je Wun Lee, Sung Hoon Youk +1 more | 2013-11-12 |
| 6197994 | Silica gel supported bis-cinchona alkaloid derivatives and a preparation method and use thereof | Jung Woon Yang | 2001-03-06 |
| 5994556 | Bis(ortho-diarylphosphinophenyl)-tetrahydro-bi(1,3-oxazole) and a preparation method thereof | Sang Gi Lee, Chung-woo Lim | 1999-11-30 |
| 5968867 | Silica gel supported bis-cinchona alkaloid derivatives and a preparation method and use thereof | Jung Woon Yang | 1999-10-19 |
| 5219474 | Liquid fire extinguishing composition | In Ok Kim, Jae Kyun Lee, Tae-Kyu Kim, Sang Gi Lee | 1993-06-15 |
| 5179208 | Process for preparing d-2-(6-methoxy-2-naphthyl)-propionic acid and intermediate thereof | In Ok Kim, Jae Kyun Lee | 1993-01-12 |
| 5145993 | Process for preparing D-2-(6-methoxy-2-naphthyl)-propionic acid and intermediate thereof | In Ok Kim, Jae Kyun Lee | 1992-09-08 |
| 5103065 | Transition metal complexes as catalysts for hydrogenation hydroformylation and cyclotrimerization | Werner Bertleff, Dieter Koeffer, Wolfgang Klaeui | 1992-04-07 |
| 4999443 | Transition metal complexes | Werner Bertleff, Dieter Koeffer, Wolfgang Klaeui | 1991-03-12 |