Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800216 | Refrigerant composition for replacing chlorodifluoromethane | Byung Gwon Lee, Hoon Kim, Chang-Nyeon Kim | 2004-10-05 |
| 6776922 | Refrigerant composition comprising difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane | Byung Gwon Lee, Sang Deuk Lee, Chang-Nyeon Kim | 2004-08-17 |
| 6716947 | Method for preparing dimethyl dipropargylmalonate polymer containing six-membered ring structure | Youn-Woo Lee, Hyun-Nam Cho, Young Jae Hur | 2004-04-06 |
| 6692653 | Refrigerant composition | Byung Gwon Lee, Hong Gon Kim, Chang-Nyeon Kim | 2004-02-17 |