Leaching Method
US-2025092488-A1 · Mar 20, 2025 · US
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Preliminary treatment
Preliminary treatment · 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 | C22B15/0002 |
| Official title | {Preliminary treatment} |
| Display label | Preliminary treatment |
| 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 |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 2 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for metal recovery
US-2019177864-A1 · Jun 13, 2019 · US
Systems and methods for copper recovery via roasting and leaching
US-10246789-B2 · Apr 2, 2019 · US
Process for removing uranium in copper concentrate via magnetic separation
US-9790571-B2 · Oct 17, 2017 · US
Method of treating recyclable raw materials
US-9447479-B2 · Sep 20, 2016 · US
Systems and methods for metal recovery
US-2016230296-A1 · Aug 11, 2016 · US
Systems and methods for metal recovery
US-9340849-B2 · May 17, 2016 · US
Method of treating recyclable raw materials
US-2015337409-A1 · Nov 26, 2015 · US