Molten iron dephosphorization method
US-12584183-B2 · Mar 24, 2026 · US
Regulating or controlling the blowing
Regulating or controlling the blowing · 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 | C21C5/30 |
| Official title | Regulating or controlling the blowing |
| Display label | Regulating or controlling the blowing |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2018 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 9 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing molten iron with electric arc furnace
US-12492439-B2 · Dec 9, 2025 · US
Method for predicting slopping in converter, method for operating converter, and system for predicting slopping in converter
US-2025297335-A1 · Sep 25, 2025 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2025188565-A1 · Jun 12, 2025 · US
Cold iron source melting ratio estimation device, converter-type refining furnace control device, cold iron source melting ratio estimation method, and molten iron refining treatment method
US-2025075280-A1 · Mar 6, 2025 · US
Furnace slag amount estimation device, furnace slag amount estimation method, and molten steel production method
US-2024393159-A1 · Nov 28, 2024 · US
Method and device for controlling temperature of molten steel during ladle furnace (LF) refining based on interpretable machine learning
US-12146200-B1 · Nov 19, 2024 · US
Converter bottom blowing system capable of allowing multiple media to share bottom blowing lances and method for using same
US-12123063-B2 · Oct 22, 2024 · US
Converter bottom blowing system capable of allowing multiple media to share bottom blowing lances and method for using same
US-2024247328-A1 · Jul 25, 2024 · US
Method and system for determining converter tapping quantity
US-11987855-B2 · May 21, 2024 · US
Molten metal component estimation device, method of estimating molten metal component, and method of manufacturing molten metal
US-11966669-B2 · Apr 23, 2024 · US
Molten iron refining method
US-2024076754-A1 · Mar 7, 2024 · US
Converter blowing control method and converter blowing control system
US-2024035104-A1 · Feb 1, 2024 · US
Method and system for determining converter tapping quantity
US-2024002964-A1 · Jan 4, 2024 · US
Method for producing chromium-containing molten steel
US-2023304110-A1 · Sep 28, 2023 · US
Converter blowing control method and converter blowing control system
US-2023243005-A1 · Aug 3, 2023 · US
Long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick
US-11667982-B2 · Jun 6, 2023 · US
Method for manufacturing molten iron with electric arc furnace
US-2022403478-A1 · Dec 22, 2022 · US
Molten iron dephosphorization method
US-2022259686-A1 · Aug 18, 2022 · US
Long-life service method for powder-bottom-injecting converter based on collaborative hot replacement of furnace bottom and bottom purging brick
US-2022235427-A1 · Jul 28, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C5/30?
- CPC C21C5/30 is the Cooperative Patent Classification code for “Regulating or controlling the blowing.”
- How many patents are filed under CPC C21C5/30 (Regulating or controlling the blowing)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC C21C5/30 growing?
- Publication counts under this code: 9 in 2024 vs 4 in 2025 (latest complete years).