Patents
US 12624416 B2: Rare earth laser-assisted metal production and separation
- Granted
- 2026-05-12
- Filed
- 2022-12-14 application 17803831
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A compound or complex containing a rare earth element is impinged with a pulsed laser that is so controlled as to photochemically reduce and obtain a rare earth metal (REM). A mixture of REM salts can be impinged using laser light tuned to selectively reduce a particular rare earth-containing salt of the mixture to separate out as its respective rare earth metal.
Source: PTBLXML, file of 2026-05-12 (ipgb20260512.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Iowa State University Research Foundation, Inc. 581 patents | US company or organization | Ames, IA | PTBLXML, file of 2026-05-12 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Cajetan Ikenna Nlebedim | Ames, IA | 9 | PTBLXML, file of 2026-05-12 | |
| Abhishek Sarkar | Kanpur, IN | 13 | PTBLXML, file of 2026-05-12 | |
| Pranav Shrotriya | Ames, IA | 2 | PTBLXML, file of 2026-05-12 | |
| Denis Prodius | Ames, IA | 4 | PTBLXML, file of 2026-05-12 | |
| Ho-won Noh | Ames, IA | PTBLXML, file of 2026-05-12 | ||
| Thomas Lograsso | Ames, IA | PTBLXML, file of 2026-05-12 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C22B | Production and refining of metals ; pretreatment of raw materials | C22B4/08 | PTBLXML, file of 2026-05-12 |
| B01J | Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus | B01J19/121 | PTBLXML, file of 2026-05-12 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-07-29 | Assignment Assignment of assignor's interest | NLEBEDIM, CAJETAN IKENNA signed 2024-03-08 SARKAR, ABHISHEK signed 2024-04-23 SHROTRIYA, PRANAV signed 2024-05-01 PRODIUS, DENIS signed 2024-03-11 NOH, HO-WON signed 2024-06-04 LOGRASSO, THOMAS signed 2024-03-11 | IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC. AMES, IA | 68189/673 | PASDL, file of 2026-10-15 |
| 2023-02-23 | Government interest Confirmatory license | IOWA STATE UNIVERSITY signed 2023-01-09 | UNITED STATES DEPARTMENT OF ENERGY WASHINGTON, DC | 62837/390 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.