Method of manufacturing steel
US-2024229174-A9 · Jul 11, 2024 · US
Charging of the electric furnace
Charging of the electric furnace · 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 | C21C5/527 |
| Official title | {Charging of the electric furnace} |
| Display label | Charging of the electric furnace |
| Total patents | 114 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 8 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 12 |
| 2023 | 2 |
| 2024 | 22 |
| 2025 | 28 |
| 2026 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
A method of manufacturing of a steel product in several steelmaking units
US-2024132984-A1 · Apr 25, 2024 · US
Method and system of reducing non-ferrous metal content of scrap steel
US-2024060152-A1 · Feb 22, 2024 · US
Electric furnace
US-11898797-B2 · Feb 13, 2024 · US
Apparatus and method for feeding and preheating a metal charge in a melting furnace
US-11867462-B2 · Jan 9, 2024 · US
Method and system of reducing non-ferrous metal content of scrap steel
US-11834728-B2 · Dec 5, 2023 · US
Hot Metal Production from DRI with Electric Arc Heating
US-2023287528-A1 · Sep 14, 2023 · US
Method for manufacturing molten iron with electric arc furnace
US-2022403478-A1 · Dec 22, 2022 · US
Molten steel production method
US-2022396844-A1 · Dec 15, 2022 · US
Electric furnace
US-11473841-B2 · Oct 18, 2022 · US
Method and system of reducing non-ferrous metal content of scrap steel
US-2022235430-A1 · Jul 28, 2022 · US
Biocarbon pellets with adjustable grindability index
US-2022228080-A1 · Jul 21, 2022 · US
Processes for producing biocarbon pellets with adjustable grindability index
US-2022228081-A1 · Jul 21, 2022 · US
Reactivity-moderated biocarbon pellets
US-2022228082-A1 · Jul 21, 2022 · US
Melting furnace for metallurgical plant and operating method therefor
US-11390927-B2 · Jul 19, 2022 · US
Method for producing chromium-containing molten iron
US-2022195546-A1 · Jun 23, 2022 · US
Method for producing chromium-containing molten iron
US-2022195545-A1 · Jun 23, 2022 · US
Apparatus and method for feeding and preheating a metal charge in a melting furnace
US-2022099373-A1 · Mar 31, 2022 · US
Method for operating an electric arc furnace
US-2022034586-A1 · Feb 3, 2022 · US
Carburizer and carburization method using the same
US-2021404047-A1 · Dec 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C5/527?
- CPC C21C5/527 is the Cooperative Patent Classification code for “Charging of the electric furnace.”
- How many patents are filed under CPC C21C5/527 (Charging of the electric furnace)?
- Our database includes 114 publications tagged with this CPC code.
- Is patent activity under CPC C21C5/527 growing?
- Publication counts under this code: 22 in 2024 vs 28 in 2025 (latest complete years).