Method and system for comprehensive recovery and utilization of copper-nickel sulfide ore
US-2019352740-A1 · Nov 21, 2019 · US
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Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C22B3/0067 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 4 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears to be growing based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2019 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
New extractant, useful for extracting rare earths from an aqueous phosphoric acid solution, and the applications thereof
US-2019218643-A1 · Jul 18, 2019 · US
Molybdenum recovery from aqueous nitric acid solution by solvent extraction
US-10221466-B2 · Mar 5, 2019 · US
Rare earth element recovery method
US-9068249-B2 · Jun 30, 2015 · US