Optimized melting of compacted dri
US-2026043103-A1 · Feb 12, 2026 · US
Conditioning, transformation of reduced iron ores
Conditioning, transformation of reduced iron ores · 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 | C21B13/0086 |
| Official title | {Conditioning, transformation of reduced iron ores} |
| Display label | Conditioning, transformation of reduced iron ores |
| Total patents | 35 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2019 | 3 |
| 2021 | 2 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 4 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Adjusting carbon content in direct reduced iron
US-2026043101-A1 · Feb 12, 2026 · US
Fired pellets for reduction and method for producing same
US-2026028688-A1 · Jan 29, 2026 · US
A method for producing molten pig iron into an electrical smelting unit
US-2026022430-A1 · Jan 22, 2026 · US
A method of manufacturing molten pig iron into an electrical smelting unit
US-2026009095-A1 · Jan 8, 2026 · US
Method for producing sintered ore
US-12404566-B2 · Sep 2, 2025 · US
Method for the direct reduction of iron ore
US-2025257416-A1 · Aug 14, 2025 · US
Methods for preheating metal-containing pellets
US-12305926-B2 · May 20, 2025 · US
Method for determining the content of at least metallic iron in sponge iron - or a sample thereof - that is produced by direct reduction from iron ore
US-2025027904-A1 · Jan 23, 2025 · US
Method for carburization of HDRI produced in H2 based direct reduction process
US-12180554-B2 · Dec 31, 2024 · US
Direct reduced iron system and method
US-2024401160-A1 · Dec 5, 2024 · US
Method for producing an iron melt
US-2024344155-A1 · Oct 17, 2024 · US
Device for manufacturing molten iron
US-12084731-B2 · Sep 10, 2024 · US
Direct reduced iron system and method
US-12060622-B2 · Aug 13, 2024 · US
A method for manufacturing direct reduced iron
US-2024254576-A1 · Aug 1, 2024 · US
Reduced iron production method and reduced iron production device
US-2024175101-A1 · May 30, 2024 · US
Raw material particles for production of agglomerate, method for producing raw material particles for production of agglomerate, agglomerate, method for producing agglomerate, and method for producing reduced iron
US-2024167110-A1 · May 23, 2024 · US
Biomass Direct Reduced Iron
US-2023366051-A1 · Nov 16, 2023 · US
Biomass Direct Reduced Iron
US-2023203607-A1 · Jun 29, 2023 · US
Method for Predicting Burning Through Point Based on Encoder-Decoder Network
US-2023177313-A1 · Jun 8, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21B13/0086?
- CPC C21B13/0086 is the Cooperative Patent Classification code for “Conditioning, transformation of reduced iron ores.”
- How many patents are filed under CPC C21B13/0086 (Conditioning, transformation of reduced iron ores)?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC C21B13/0086 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).