Method for melting direct reduced iron, solid iron and method for producing the same, material for civil engineering and construction and method for producing the same, and system for melting direct reduced iron
US-2025283185-A1 · Sep 11, 2025 · US
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Methods of cooling or quenching molten slag
Methods of cooling or quenching molten slag · 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 | C21B2400/022 |
| Official title | Methods of cooling or quenching molten slag |
| Display label | Methods of cooling or quenching molten slag |
| Total patents | 6 |
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 |
| 2018 | 1 |
| 2019 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Integrated drying process and device for dry granulated slag and sludge
US-2023295754-A1 · Sep 21, 2023 · US
Roller treatment process and treatment device suitable for total-amount steel slag treatment
US-11519043-B2 · Dec 6, 2022 · US
Roller treatment process and treatment device suitable for total-amount steel slag treatment
US-2019203307-A1 · Jul 4, 2019 · US
Method for solidifying liquid steel slag
US-2018171422-A1 · Jun 21, 2018 · US
Slag removal apparatus and method
US-9017596-B2 · Apr 28, 2015 · US