Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7842125 | Process for refining nitrogen trifluoride gas using alkali earth metal exchanged zeolite | Yong-Chul Park, Woo-Sik Jeong, Kwang Chul Hyun, Jang Won Lee | 2010-11-30 |
| 7637986 | Process for refining nitrogen trifluoride gas using alkali earth metal exchanged and impregnated zeolite | Yong-Chul Park, Woo-Sik Jeong, Kwang Chul Hyun, Jang Won Lee | 2009-12-29 |
| 7399799 | Flame-retardant polyester polymer dyeable with cationic dye, method of producing the same, and copolyester fiber using the same | Seung Cheol Yang, Eung Soo Kim, Yang-Kuk Son | 2008-07-15 |
| 7214727 | Solution containing cellulose dissolved in N-methylmorpholine-N-oxide and high tenacity lyocell multifilament using the same | Soo-Myung Choi, Young-Soo Wang, Sung Ryong Kim, Jae-Shik Choi, Tae-Jung Lee +2 more | 2007-05-08 |
| 7214335 | Solution containing cellulose dissolved in N-methylmorpholine-N-oxide and high tenacity lyocell multifilament using the same | Soo-Myung Choi, Young-Soo Wang, Sung Ryong Kim, Jae-Shik Choi, Tae-Jung Lee +2 more | 2007-05-08 |
| 7097344 | Homogeneous cellulose solution and high tenacity lyocell multifilament using the same | Soo-Myung Choi, Young-Soo Wang, Sung Ryong Kim, Jae-Shik Choi, Tae-Jung Lee +2 more | 2006-08-29 |
| 6955854 | High tenacity polyethylene-2, 6-naphthalate fibers having excellent processability | Woo Sung Kim, Yun-Hyuk Bang, Young Jo Kim, Chan Min Park | 2005-10-18 |
| 6902804 | Lyocell multifilament | Soo-Myung Choi, Young-Soo Wang, Sung Ryong Kim, Jae-Shik Choi, Tae-Jung Lee +1 more | 2005-06-07 |