Process for extracting tantalum and niobium from an aqueous acidic solution
US-2026009106-A1 · Jan 8, 2026 · US
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Ethers or epoxides
Ethers or epoxides · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22B3/302 |
| Official title | {Ethers or epoxides} |
| Display label | Ethers or epoxides |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2020 | 1 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Use of synergistic mixture of extractants for extracting rare earth elements from an aqueous medium comprising phosphoric acid
US-12037660-B2 · Jul 16, 2024 · US
Method for isolating an aqueous hydrochloric acid solution of fecl3 from an aqueous multi-component system
US-2023391634-A1 · Dec 7, 2023 · US
Delithiation solution and method for formation of anode active material or anode using same
US-2023178709-A1 · Jun 8, 2023 · US
Separation of Radiometals
US-2022118379-A1 · Apr 21, 2022 · US
Use of synergistic mixture of extractants for extracting rare earth elements from an aqueous medium comprising phosphoric acid
US-2022010409-A1 · Jan 13, 2022 · US
Systems and methods for detecting metal ion concentrations in subjects
US-10605799-B2 · Mar 31, 2020 · US
Systems and methods for detecting metal ion concentrations in subjects
US-2018024112-A1 · Jan 25, 2018 · US