Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10829592 | Method for preparing polyaniline complex with antimicrobial activity and heavy metal removal efficiency using conductive poly aniline polymer doped with organic acid and metal ion in defined order | Chan Woo Lee | 2020-11-10 |
| D830500 | Portable water purifying filter | — | 2018-10-09 |
| D830501 | Portable water purifying filter | — | 2018-10-09 |
| 10068635 | Memory device including delay circuit having gate insulation films with thicknesses different from each other | Doo Young Kim | 2018-09-04 |
| 9802789 | Elevator security system | Yu Seon Kim, Eui Seung Son | 2017-10-31 |
| 9792976 | Memory device including delay circuit having gate insulation films with thicknesses different from each other | Doo Young Kim | 2017-10-17 |
| 9654561 | Integrated cloud storage service through home gateway | Eui Seung Son, Se Jin Park, Yu Seon Kim | 2017-05-16 |
| 9458525 | Method of recovering rare earth elements from oxidized scrap of permanent magnet | Chul-Joo Kim, Kyeong Woo Chung | 2016-10-04 |
| 8475746 | Uranium ion exchange adsorption method using ultrasound | Kyeong Woo Chung, Chul-Joo Kim | 2013-07-02 |
| 8470269 | Highly efficient uranium leaching method using ultrasound | Kyeong Woo Chung, Chul-Joo Kim | 2013-06-25 |
| 7799303 | Method of preparing silica nanoparticles from siliceous mudstone | Hee Dong Jang, Han Kwon Chang | 2010-09-21 |
| 7070714 | Self-arrayed hole-carryable polymers used for organic photo-refractive materials and photo-refractive mixture containing them | Suck-Hyun Lee, Chan Woo Lee, Young-Bum Kim, O-Pil Kwon | 2006-07-04 |