Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11885044 | Method for producing polypropylene nonwoven fabric | Kyung Seop Noh, Seong Min Chae, Sangjin Jeon, Taejin Kim | 2024-01-30 |
| 10906998 | Non-stretched polypropylene-based film | Kyung Seop Noh, Ji Ho Choi, Ki Soo Lee, Sang Jin Jeon, Hee Kwang Park +2 more | 2021-02-02 |
| 10214601 | Non-stretched polypropylene-based film | Kyung Seop Noh, Ji Ho Choi, Ki Soo Lee, Sang Jin Jeon, Hee Kwang Park +2 more | 2019-02-26 |
| 9771441 | Preparation method of a polypropylene and a polypropylene obtained therefrom | Ji Ho Choi, Kyung Seop Noh, Won Hee Kim, Sang Jin Jeon, Ra Yun Choi +1 more | 2017-09-26 |
| 9637566 | Method for preparing supported metallocene catalyst and method for preparing polyolefin using the same | Hyuck Ju Kwon, San-Ak Hwang, Dong Gil Lee | 2017-05-02 |
| 9631034 | Non-supported heterogeneous polyolefin polymerization catalyst composition and method for preparing same | Jin Woo Lee, Yeong-Ah Choi, Nan-Young Lee, Dong Gil Lee | 2017-04-25 |
| 9587053 | Preparation method of a propylene-1-butene copolymer and a propylene-1-butene copolymer obtained therefrom | Kyung Seop Noh, Won Hee Kim, Sang Jin Jeon, Ra Yun Choi, Byung Seok Kim +1 more | 2017-03-07 |
| 9284386 | Ansa-metallocene compound and method for preparing supported catalyst using the same | Yeong-Ah Choi, Jin Woo Lee, Nan-Young Lee, Dong Gil Lee | 2016-03-15 |
| 9029486 | Supported metallocene catalyst, method for preparing the same and method for preparing polyolefin using the same | Hyuck Ju Kwon, San-Ak Hwang, Dong Gil Lee | 2015-05-12 |
| 8779064 | Polypropylene resin composition with good transparence and good impact strength | Yong Jeon Kim, Jin Woo Lee, Nan-Young Lee, Ro-my Lee | 2014-07-15 |
| 7884164 | Catalyst system for olefin polymerization comprising trioxasilocane and method for olefin polymerization using the same | Nan-Young Lee, Dong-Ryul Im, Jin Woo Lee, Ro Mi Lee | 2011-02-08 |
| 7776979 | Prepolymerized catalyst for olefin polymerization, process for polymerizing olefin by using the catalyst and polyolefin produced by the process | Ro Mi Lee, Cheon-Il Park, Dong-Ryul Im, Jin Woo Lee, Nan-Young Lee | 2010-08-17 |
| 7329714 | Method of polymerizing propylene comprising olefin pre-polymerization step | Nan-Young Lee, Jin Woo Lee, Yi Young Choi, So Young PARK | 2008-02-12 |
| 6809056 | Process for preparing polyolefin polymerization catalysts | Hong Ki Choi, Joo-Kee Yoon, Jae-Seung Oh | 2004-10-26 |