Process for extracting tantalum and niobium from an aqueous acidic solution
US-2026009106-A1 · Jan 8, 2026 · US
using alcohols or phenols · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C22B3/262 |
| Official title | {using alcohols or phenols} |
| Display label | using alcohols or phenols |
| Total patents | 10 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2018 | 3 |
| 2023 | 2 |
| 2025 | 2 |
| 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-2025243560-A1 · Jul 31, 2025 · US
US-12344916-B2 · Jul 1, 2025 · US
US-2023391634-A1 · Dec 7, 2023 · US
US-2023304125-A1 · Sep 28, 2023 · US
US-10144989-B2 · Dec 4, 2018 · US
US-9957587-B2 · May 1, 2018 · US
US-2018073103-A1 · Mar 15, 2018 · US
US-2016153066-A1 · Jun 2, 2016 · US
US-9102994-B2 · Aug 11, 2015 · US