Method for producing steel in an integrated metallurgical plant
US-2024271232-A1 · Aug 15, 2024 · US
Injection of pulverulent coal
Injection of pulverulent coal · 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 | C21B5/003 |
| Official title | {Injection of pulverulent coal} |
| Display label | Injection of pulverulent coal |
| Total patents | 66 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 6 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 10 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 2 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production method of pig iron
US-2023313328-A1 · Oct 5, 2023 · US
Method for controlling hot metal temperature, operation guidance method, method for operating blast furnace, method for producing hot metal, device for controlling hot metal temperature, and operation guidance device
US-2023251036-A1 · Aug 10, 2023 · US
Blast furnace operation method
US-2023175085-A1 · Jun 8, 2023 · US
Operating method of an iron making installation and associated operating installation
US-11525167-B2 · Dec 13, 2022 · US
Method for operating blast furnace
US-2022380859-A1 · Dec 1, 2022 · US
Method of operating blast furnace and blast furnace ancillary facility
US-2022380860-A1 · Dec 1, 2022 · US
Blast furnace apparatus and operation method for blast furnace
US-11512899-B2 · Nov 29, 2022 · US
Seal valve for a pci system of a blast furnace
US-2022290922-A1 · Sep 15, 2022 · US
Optimization method for directional preparation technique and efficient use of semi-coke for blast furnace injection
US-2022275280-A1 · Sep 1, 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
Method for operation of blast furnace
US-2022177985-A1 · Jun 9, 2022 · US
Blast furnace apparatus and operation method for blast furnace
US-2021190426-A1 · Jun 24, 2021 · US
Blast furnace operation method
US-11041220-B2 · Jun 22, 2021 · US
Blast furnace operation method
US-2020299792-A1 · Sep 24, 2020 · US
Feed mixture distribution device
US-10710035-B1 · Jul 14, 2020 · US
Feed mixture distribution device
US-2020197885-A1 · Jun 25, 2020 · US
Operating method of an iron making installation and associated operating installation
US-2020087742-A1 · Mar 19, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21B5/003?
- CPC C21B5/003 is the Cooperative Patent Classification code for “Injection of pulverulent coal.”
- How many patents are filed under CPC C21B5/003 (Injection of pulverulent coal)?
- Our database includes 66 publications tagged with this CPC code.
- Is patent activity under CPC C21B5/003 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).