Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10207228 | Surface-modified separation membrane and method for modifying surface of separation membrane | Changho Lee, Hyowon Kim, Hobum Park | 2019-02-19 |
| 10143975 | Three-layered porous graphene membrane with supporter and bonding layers | Changho Lee, Hyung Gyu Park, Roman Wyss | 2018-12-04 |
| 9808751 | Complex filter and water purifier including complex filter | Kyunghee Moon, Changho Lee, Hyunhwan Oh, Sangduck LEE, Jeayoul JOUNG +1 more | 2017-11-07 |
| 9636640 | Separation membrane, method for preparing the same and unit for purification | Byungsoo Oh, Minjoung Kim | 2017-05-02 |