Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11359258 | Method of inhibiting degradation of DSX extractant by auxiliary means | Youn Kyu Yi, Yong Hoon Lim, Young Hun Kim | 2022-06-14 |
| 11359260 | Method of inhibiting degradation of extractant by anhydrous environment avoiding and metal stripping | Youn Kyu Yi, Kyung Bae Jung, Seung Ho Lee | 2022-06-14 |
| 11274047 | Method of inhibiting extractant degradation by controlling extractive capacity and preventing direct degradation | Youn Kyu Yi, Gwang Seop Lee, Young Hun Kim | 2022-03-15 |
| 11254584 | Method for inhibiting extractant degradation of DSX process through metal extraction control | Youn Kyu Yi, Young Hun Kim | 2022-02-22 |
| 11203531 | Method for inhibiting extractant degradation of DSX process through manganese extraction control | Youn Kyu Yi, Seung Ho Lee | 2021-12-21 |
| 11186492 | Method for recovering valuable metal sulfides | Seung Ho Lee, Youn Kyu Yi | 2021-11-30 |
| 11169127 | Method for measuring the concentration of aliphatic hydroxy oxime and neodecanoic acid by gas chromatography | Seung Ho Lee, Bong-Keun Jung, Youn Kyu Yi | 2021-11-09 |
| 11168003 | Method for inhibiting extractant degradation by diluent and extractant input method | Youn Kyu Yi, Sang-seo Lee, Seung Ho Lee | 2021-11-09 |
| 10753879 | Method for measuring bis(2,4,4-trimethylpentyl) phosphinic acid concentration by ICP-OES | Seung Ho Lee, Young Hun Kim, Youn Kyu Yi | 2020-08-25 |
| 9169125 | Method for producing high-purity lithium carbonate | Dong-Jun Kang, Mi Hee Yoon | 2015-10-27 |