Method for producing nickel sulfate
US-2026055007-A1 · Feb 26, 2026 · US
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Lee Hyeon Hui patents
Lee Hyeon Hui is listed as an inventor on 13 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Lee Hyeon Hui |
| Total patents | 13 |
| First publication | Oct 3, 2019 |
| Latest publication | Feb 26, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Method for recovering transition metals from lithium secondary batteries
US-2026042132-A1 · Feb 12, 2026 · US
Method for recovering active metal of lithium secondary battery
US-12545974-B2 · Feb 10, 2026 · US
Carbon dioxide absorbent containing ionic material containing spiro ammonium cation and hydroxide anion, and carbon dioxide separation method using the same
US-2026001056-A1 · Jan 1, 2026 · US
Method for reducing waste by recovering transition metals from lithium secondary battery
US-12451533-B2 · Oct 21, 2025 · US
Method of recovering transition metal from lithium secondary battery
US-2024413419-A1 · Dec 12, 2024 · US
Method of recovering active metal of lithium secondary battery
US-2024318280-A1 · Sep 26, 2024 · US
Method of recovering transition metal
US-2024243380-A1 · Jul 18, 2024 · US
Method for reducing waste by recovering transition metals from lithium secondary battery
US-2024030510-A1 · Jan 25, 2024 · US
Method for recovering active metal of lithium secondary battery
US-2023250507-A1 · Aug 10, 2023 · US
Recent patents
Latest publications not already listed above.
Method of recovering cathode active material precursor
US-2023049078-A1 · Feb 16, 2023 · US
Method for separating normal paraffin and isoparaffin from hydrocarbon oil
US-10883057-B2 · Jan 5, 2021 · US
Method for Separating Normal Paraffin and Isoparaffin from Hydrocarbon Oil
US-2019300802-A1 · Oct 3, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Sk Innovation Co Ltd | 13 |
| Sk Energy Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H01M10/54 | 10 |
| Y02W30/84 | 9 |
| C22B23/0461 | 8 |
| C22B3/44 | 8 |
| C22B23/043 | 8 |