Refining process control device and refining process control method
US-12595523-B2 · Apr 7, 2026 · US
Blowing from above and through the bath
Blowing from above and through the bath · 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 | C21C5/35 |
| Official title | Blowing from above and through the bath |
| Display label | Blowing from above and through the bath |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 3 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 4 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Molten iron dephosphorization method
US-12584183-B2 · Mar 24, 2026 · US
Process for producing raw steel and aggregate for production thereof
US-12571062-B2 · Mar 10, 2026 · US
Blowing control method for maintaining mushroom head of bottom-blowing nozzle converter
US-12571061-B2 · Mar 10, 2026 · US
Method for producing low-carbon ferromanganese
US-12473605-B2 · Nov 18, 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
Smelting unit for steel production with a tap weight of between 60 t and 350 t
US-2025043370-A1 · Feb 6, 2025 · 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
Method for preparing titanium-containing ultra-low-carbon steel
US-2024287635-A1 · Aug 29, 2024 · US
Method for refining molten iron
US-2024271233-A1 · Aug 15, 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
Molten iron refining method
US-2024076754-A1 · Mar 7, 2024 · US
Top-blowing lance for converter, method for adding auxiliary raw material, and method for refining of molten iron
US-2024076755-A1 · Mar 7, 2024 · US
Molten iron refining method
US-2024060149-A1 · Feb 22, 2024 · US
Gas injection nozzle refractory and gas injection nozzle
US-11821691-B2 · Nov 21, 2023 · US
Refining process control device and refining process control method
US-2023332260-A1 · Oct 19, 2023 · US
Process for producing raw steel and aggregate for production thereof
US-2023323491-A1 · Oct 12, 2023 · US
Blowing control method for maintaining mushroom head of bottom-blowing nozzle converter
US-2023287529-A1 · Sep 14, 2023 · US
Method for producing low-carbon ferromanganese
US-2023167518-A1 · Jun 1, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C5/35?
- CPC C21C5/35 is the Cooperative Patent Classification code for “Blowing from above and through the bath.”
- How many patents are filed under CPC C21C5/35 (Blowing from above and through the bath)?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC C21C5/35 growing?
- Publication counts under this code: 7 in 2024 vs 4 in 2025 (latest complete years).