Methods and compositions to recover rare earth elements from organic solutions
US-2025369073-A1 · Dec 4, 2025 · US
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Constant James patents
Constant James is listed as an inventor on 4 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Constant James |
| Total patents | 4 |
| First publication | Oct 27, 2022 |
| Latest publication | Dec 4, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Rare earth enrichment process by contacting raw material with a base at specific pH values
US-11827954-B2 · Nov 28, 2023 · US
Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage
US-2023039988-A1 · Feb 9, 2023 · US
Systems and processes for recovery of high-grade rare earth concentrate from acid mine drainage
US-2022340997-A1 · Oct 27, 2022 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| West Virginia Univ Board Of Governors On Behalf Of West Virginia Univ | 3 |
| Univ West Virginia | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C22B59/00 | 4 |
| Y02P10/20 | 4 |
| C22B3/3846 | 4 |
| C22B3/22 | 4 |
| C22B3/065 | 3 |