Method for producing molten steel
US-12281365-B2 · Apr 22, 2025 · US
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Refining of pig-iron; Cast iron
Refining of pig-iron; Cast iron · 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 | C21C1/00 |
| Official title | Refining of pig-iron; Cast iron |
| Display label | Refining of pig-iron; Cast iron |
| Total patents | 12 |
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 | 2 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 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.
Apparatus for electrorefining a ferrous molten metal and method associated therewith
US-2023235470-A1 · Jul 27, 2023 · US
Method for producing molten steel
US-2022389527-A1 · Dec 8, 2022 · US
Method for producing a high-strength steel strip with improved properties for further processing, and a steel strip of this type
US-2021147953-A1 · May 20, 2021 · US
Combined system for producing steel and method for operating the combined system
US-10604816-B2 · Mar 31, 2020 · US
Method for producing a high-strength steel strip with improved properties for further processing, and a steel strip of this type
US-2019185951-A1 · Jun 20, 2019 · US
Method for treating molten cast iron
US-2018148805-A1 · May 31, 2018 · US
Titanium slab for hot rolling produced by electron-beam melting furnace, process for production thereof, and process for rolling titanium slab for hot rolling
US-9962760-B2 · May 8, 2018 · US
Method for producing a suspension of microfibrillated cellulose, microfibrillated cellulose and its use
US-2017183555-A1 · Jun 29, 2017 · US
Combined system for producing steel and method for operating the combined system
US-2016304978-A1 · Oct 20, 2016 · US
Green process for the preparation of pure iron
US-2016060726-A1 · Mar 3, 2016 · US
Sampler for taking samples from melts having a melting point higher than 600 ° C. and method for taking samples
US-9128013-B2 · Sep 8, 2015 · US