Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10042246 | Method of manufacturing photomask | Jong-Keun Oh, Hyung-Ho Ko, Byung-Gook Kim, Jae-Hyuck Choi | 2018-08-07 |
| 9417518 | Photomask and method of manufacturing the same | Jong-Keun Oh, Hyung-Ho Ko, Byung-Gook Kim, Jae-Hyuck Choi | 2016-08-16 |
| 9051250 | Polymorphs of N-malonyl-bis(N′-methyl-N′-thiobenzoylhydrazide) | Elena Kostik, Lijun Sun, Joanna Dziewiszek | 2015-06-09 |
| 8637704 | Polymorphs of N-malonyl-bis(N′-methyl-N′-thiobenzoylhydrazide) | Elena Kostik, Lijun Sun, Joanna Dziewiszek | 2014-01-28 |