Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10160766 | Benzopyranyl tetracycle compound and pharmaceutical composition having excellent anti-inflammatory effect comprising the same | Seung Bum Park, Wan Sang CHO | 2018-12-25 |
| 9468641 | Anti-inflammatory pharmaceutical composition comprising benzopyranyl tetracycles | Seung Bum Park, Sanghee Lee, Donghyun Lim, Jongmin Park, Kyoungho Suk +1 more | 2016-10-18 |
| 9089820 | Selective membrane having a high fouling resistance | Yong-Doo Jung, Sung-pyo HONG, Yeo-jin Kim | 2015-07-28 |
| 8820540 | Method for preparing a filtration membrane and filtration membrane prepared by said method | Doowon Lee, Sungpyo Hong | 2014-09-02 |
| 7913857 | Selective membrane having a high fouling resistance | Sung-pyo HONG, Jong-Hwa Lee, Kwan Young Ryu | 2011-03-29 |
| 7537697 | Selective membrane having a high fouling resistance | Sung-pyo HONG, Jong-Hwa Lee, Kwan Young Ryu | 2009-05-26 |
| 7479300 | Composite polyamide reverse osmosis membrane and method of producing the same | Sung-pyo HONG, Jong-Hwa Lee, Jun Suk Kim | 2009-01-20 |
| 6913694 | Selective membrane having a high fouling resistance | Sung-pyo HONG, Jin-Woo Kang, Nowon Kim | 2005-07-05 |
| 6368507 | Composite polyamide reverse osmosis membrane and method of producing the same | Young-Seo Yoon, Nowon Kim, Jong Eun Kim | 2002-04-09 |
| 6245234 | Composite polyamide reverse osmosis membrane and method of producing the same | Jong Eun Kim, Wan-Ju Kim, Ki Suop Park | 2001-06-12 |
| 6063278 | Composite polyamide reverse osmosis membrane and method of producing the same | Young-Seo Yoon | 2000-05-16 |
| 6015495 | Composite polyamide reverse osmosis membrane and method of producing the same | Nowon Kim | 2000-01-18 |
| 4992485 | Microporous peek membranes and the preparation thereof | Chieh-Chun Chau, Joel Racchini, Ritchie A. Wessling, Matthew T. Bishop | 1991-02-12 |
| 4859384 | Novel polyamide reverse osmosis membranes | Richard F. Fibiger, David J. Forgach, Robert J. Petersen, Donald L. Schmidt, Ritchie A. Wessling +1 more | 1989-08-22 |
| 4769148 | Novel polyamide reverse osmosis membranes | Richard F. Fibiger, David J. Forgach, Robert J. Petersen, Donald L. Schmidt, Ritchie A. Wessling +1 more | 1988-09-06 |