Method for separating cobalt and nickel
US-12577636-B2 · Mar 17, 2026 · US
Hydrometallurgy
Hydrometallurgy · 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 | C22B15/0063 |
| Official title | {Hydrometallurgy} |
| Display label | Hydrometallurgy |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 6 |
| 2017 | 3 |
| 2018 | 6 |
| 2019 | 7 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 7 |
| 2024 | 6 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Extraction of calcium and other valuable elements via sonic stimulation and sequential electrolysis
US-2025320620-A1 · Oct 16, 2025 · US
Method for recovering valuable metals from waste batteries using synergistic effects
US-2024410033-A1 · Dec 12, 2024 · US
Method for extracting valuable metal from low-matte nickel converter slag
US-12018346-B2 · Jun 25, 2024 · US
Method for extracting nickel from high matte nickel leaching residue
US-12000012-B2 · Jun 4, 2024 · US
Method for extracting nickel from high matte nickel leaching residue
US-2024084421-A1 · Mar 14, 2024 · US
Method for extracting valuable metal from low-matte nickel converter slag
US-2024035116-A1 · Feb 1, 2024 · US
Method of separating and recovering bromine from printed circuit board incineration ash by two-step process
US-11858822-B2 · Jan 2, 2024 · US
Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023416873-A1 · Dec 28, 2023 · US
Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023374625-A1 · Nov 23, 2023 · US
Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023374626-A1 · Nov 23, 2023 · US
Environmentally friendly process to optimize copper dissolution and recover copper and gold from electronic waste
US-2023374380-A1 · Nov 23, 2023 · US
Method for separating cobalt and nickel
US-2023313337-A1 · Oct 5, 2023 · US
Mineral separation using functionalized membranes
US-11731143-B2 · Aug 22, 2023 · US
A method of separating and recovering bromine from printed circuit board incineration ash by two-step process
US-2023192488-A1 · Jun 22, 2023 · US
Method for recovering copper, molybdenum, and precious metals from mineral ores via pressure oxidation
US-2022119913-A1 · Apr 21, 2022 · US
Systems and methods for the electrochemical conversion of chalcopyrite to enable hydrometallurgical extraction of copper
US-2022033985-A1 · Feb 3, 2022 · US
Mineral separation using sized-, weight- or magnetic-based polymer bubbles or beads
US-11117141-B2 · Sep 14, 2021 · US
Method of leaching copper from copper sulfide ore and method of evaluating iodine loss content of column leaching test of the copper sulfide ore
US-10550450-B2 · Feb 4, 2020 · US
Copper power and method for producing same
US-10518323-B2 · Dec 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B15/0063?
- CPC C22B15/0063 is the Cooperative Patent Classification code for “Hydrometallurgy.”
- How many patents are filed under CPC C22B15/0063 (Hydrometallurgy)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC C22B15/0063 growing?
- Publication counts under this code: 6 in 2024 vs 1 in 2025 (latest complete years).