Blocking material and method for manufacturing alloy steel
US-2019218632-A1 · Jul 18, 2019 · US
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Specific additives; Means for adding material different from burners or lances
Specific additives; Means for adding material different from burners or lances · 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 | C21C2250/00 |
| Official title | Specific additives; Means for adding material different from burners or lances |
| Display label | Specific additives; Means for adding material different from burners or lances |
| Total patents | 5 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity appears stable based on the most recent years.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for refining hot metal in converter
US-9957581-B2 · May 1, 2018 · US
Method for manufacturing high strength flake graphite cast iron for an engine body and flake graphite cast iron for an engine body
US-9708694-B2 · Jul 18, 2017 · US
Method for manufacturing high strength flake graphite cast iron, flake graphite cast iron manufactured by the method, and engine body comprising the cast iron for internal combustion engine
US-2015027399-A1 · Jan 29, 2015 · US
Method for refining hot metal in converter
US-2015020648-A1 · Jan 22, 2015 · US