Method for refining molten iron
US-2024392400-A1 · Nov 28, 2024 · US
Decarburising
Decarburising · 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 | C21C7/068 |
| Official title | Decarburising |
| Display label | Decarburising |
| Total patents | 91 |
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 | 6 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 5 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 9 |
| 2024 | 15 |
| 2025 | 23 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Molten steel refining method
US-2024294998-A1 · Sep 5, 2024 · US
Treatment method of molten steel and steel production method
US-2024287632-A1 · Aug 29, 2024 · US
Molten steel refining method
US-2024287633-A1 · Aug 29, 2024 · US
Gas atomization of molten steel
US-2024246145-A1 · Jul 25, 2024 · US
Method for dephosphorization of molten iron
US-2024229177-A1 · Jul 11, 2024 · US
Method for smelting low nitrogen steel using electric furnace
US-12018341-B2 · Jun 25, 2024 · US
Gas atomization of molten steel
US-2024165704-A1 · May 23, 2024 · US
Steel decarburization using carbon dioxide
US-11970748-B2 · Apr 30, 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
Cross-correlation of metrics for anomaly root cause identification
US-11886285-B2 · Jan 30, 2024 · US
Cross-Correlation Of Metrics For Anomaly Root Cause Identification
US-2023359519-A9 · Nov 9, 2023 · US
Molten steel refining method
US-2023340629-A1 · Oct 26, 2023 · US
Method for producing chromium-containing molten steel
US-2023304110-A1 · Sep 28, 2023 · US
Method for producing ultra-low carbon steel product
US-2023287543-A1 · Sep 14, 2023 · US
Method of making steel by deeply dephosphorization in hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in converter
US-11674192-B2 · Jun 13, 2023 · US
Method for producing low-carbon ferromanganese
US-2023167518-A1 · Jun 1, 2023 · US
Decarburization refining method for molten steel under reduced pressure
US-2023142051-A1 · May 11, 2023 · US
Method of making steel by deeply dephosphorization in hot metal tank and decarburization using semi-steel with nearly zero phosphorus load in converter
US-2023121123-A1 · Apr 20, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C7/068?
- CPC C21C7/068 is the Cooperative Patent Classification code for “Decarburising.”
- How many patents are filed under CPC C21C7/068 (Decarburising)?
- Our database includes 91 publications tagged with this CPC code.
- Is patent activity under CPC C21C7/068 growing?
- Publication counts under this code: 15 in 2024 vs 23 in 2025 (latest complete years).