Method for monitoring a steelmaking process and associated computer program
US-12473604-B2 · Nov 18, 2025 · US
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Recycling of waste material
Recycling of waste material · 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 | C21C2200/00 |
| Official title | Recycling of waste material |
| Display label | Recycling of waste material |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 3 |
| 2017 | 4 |
| 2019 | 1 |
| 2020 | 3 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Processing method
US-12168814-B2 · Dec 17, 2024 · US
Process for the combined manufacture of steel and cement clinker
US-2024318271-A1 · Sep 26, 2024 · US
Pyro-metallurgical process in a rotary kiln
US-12018345-B2 · Jun 25, 2024 · US
Liquid feed for a basic oxygen furnace
US-2023032245-A1 · Feb 2, 2023 · US
Method for dephosphorization of hot metal, and refining agent
US-11542566-B2 · Jan 3, 2023 · US
Electric furnace
US-11473841-B2 · Oct 18, 2022 · US
Method for monitoring a steelmaking process and associated computer program
US-2022177986-A1 · Jun 9, 2022 · US
Pyro-metallurgical process in a rotary kiln
US-2022178001-A1 · Jun 9, 2022 · US
Method for dephosphorization of molten iron, and refining agent
US-2020385830-A1 · Dec 10, 2020 · US
Processing method
US-2020354811-A1 · Nov 12, 2020 · US
Electric furnace
US-2020064071-A1 · Feb 27, 2020 · US
Method for processing steelmaking dust, method for producing zinc, method for producing iron- and steelmaking raw material, and raw material of iron and steel
US-2019106767-A1 · Apr 11, 2019 · US
Phosphorus and calcium collection method, and mixture produced by said collection method
US-9783418-B2 · Oct 10, 2017 · US
Starting a smelting process
US-9771626-B2 · Sep 26, 2017 · US
Metal recovery method
US-9663838-B2 · May 30, 2017 · US
Starting a smelting process
US-9551044-B2 · Jan 24, 2017 · US
Phosphorus and calcium collection method, and mixture produced by said collection method
US-2016347615-A1 · Dec 1, 2016 · US
Methods for producing improved steels by injecting iron containing by-products of an iron ore production process into liquid steel
US-2016326606-A1 · Nov 10, 2016 · US
Foil bag, carbon containing nipple, nipple kit, carbon containing electrode, electrode kit, electrode-nipple system, furnace and method of operating the furnace
US-2016174303-A1 · Jun 16, 2016 · US