Method of operating an electric arc furnace and steel mill
US-12584182-B2 · Mar 24, 2026 · US
Process control or energy utilisation in the manufacture of iron or steel
Process control or energy utilisation in the manufacture of iron or steel · 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 | C21B2100/60 |
| Official title | Process control or energy utilisation in the manufacture of iron or steel |
| Display label | Process control or energy utilisation in the manufacture of iron or steel |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 13 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hot Metal Production from DRI with Electric Arc Heating
US-2026071288-A1 · Mar 12, 2026 · US
Hot metal production from DRI with electric arc heating
US-12497668-B2 · Dec 16, 2025 · US
Biomass direct reduced iron
US-2025179596-A1 · Jun 5, 2025 · US
Injection Regulation and Control Device and Method for Blast Furnace Low-Carbon Smelting
US-2025027176-A1 · Jan 23, 2025 · US
Device for manufacturing molten iron
US-12084731-B2 · Sep 10, 2024 · US
Method of operating an electric arc furnace and steel mill
US-2024191314-A1 · Jun 13, 2024 · US
Biomass direct reduced iron
US-2023407423-A1 · Dec 21, 2023 · US
Biomass Direct Reduced Iron
US-2023366051-A1 · Nov 16, 2023 · US
Hot Metal Production from DRI with Electric Arc Heating
US-2023287528-A1 · Sep 14, 2023 · US
Device for manufacturing molten iron
US-2022002826-A1 · Jan 6, 2022 · US
Combined system for producing steel and method for operating the combined system
US-10781498-B2 · Sep 22, 2020 · US
Combined system for producing steel and method for operating the combined system
US-10697031-B2 · Jun 30, 2020 · US
Plant combination for producing steel and method for operating the plant combination
US-10697030-B2 · Jun 30, 2020 · US
Combined system for producing steel and method for operating the combined system
US-10604816-B2 · Mar 31, 2020 · US
Method for preparation of ammonia gas and CO2 for a urea synthesis process
US-10519102-B2 · Dec 31, 2019 · US
Use of top gas in direct reduction processes
US-10260117-B2 · Apr 16, 2019 · US
Device for producing partially reduced iron
US-10155997-B2 · Dec 18, 2018 · US
Method for heating a blast furnace stove
US-9896735-B2 · Feb 20, 2018 · US
Method for combustion of a low-grade fuel
US-9739484-B2 · Aug 22, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21B2100/60?
- CPC C21B2100/60 is the Cooperative Patent Classification code for “Process control or energy utilisation in the manufacture of iron or steel.”
- How many patents are filed under CPC C21B2100/60 (Process control or energy utilisation in the manufacture of iron or steel)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC C21B2100/60 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).