Issued Patents 2023
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11760721 | Polymerizable composition for polythiourethane-based optical material | Seung Mo Hong, Hyeon Myeong Seo, Junghwan Shin | 2023-09-19 |
| 11760719 | Diamine composition, and method of preparing diisocyanate composition | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN, Jooyoung JUNG, Myung-Ok Kyun | 2023-09-19 |
| 11731936 | Diisocyanate composition, preparation method thereof and optical material using same | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN, Jooyoung JUNG, Myung-Ok Kyun | 2023-08-22 |
| 11702384 | Diisocyanate composition for optical lens and preparation method thereof | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN | 2023-07-18 |
| 11673992 | Isocyanate composition with improved stability and reactivity, and optical lens using same | Junghwan Shin, Hyuk Hee HAN | 2023-06-13 |
| 11634383 | Method of preparing diisocyanate composition | Jaeyoung Pai, Jeongmoo Kim, Hyuk Hee HAN | 2023-04-25 |
| 11578038 | Method for preparing polythiol composition | Jaeyoung Pai, Seung Mo Hong, Hyeon Myeong Seo, Junghwan Shin, Jeongmoo Kim +1 more | 2023-02-14 |
| 11572432 | Polythiourethane-based plastic lens | Junghwan Shin, Jongmin Shim, Hyuk Hee HAN | 2023-02-07 |