Process for extracting tantalum and niobium from an aqueous acidic solution
US-2026009106-A1 · Jan 8, 2026 · US
Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C01G33/003 |
| Official title | {Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange} |
| Display label | Preparation involving a liquid-liquid extraction, an adsorption or an ion-exchange |
| Total patents | 8 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026009106-A1 · Jan 8, 2026 · US
US-2024208839-A1 · Jun 27, 2024 · US
US-2023045212-A1 · Feb 9, 2023 · US
US-11453597-B2 · Sep 27, 2022 · US
US-2020361777-A1 · Nov 19, 2020 · US
US-10807878-B2 · Oct 20, 2020 · US
US-2019046954-A1 · Feb 14, 2019 · US
US-2018179080-A1 · Jun 28, 2018 · US