Converter CO2—O2 mixed injection smelting method and method of dynamically controlling fire point area temperature
US-11788160-B2 · Oct 17, 2023 · US
Lances or injectors
Lances or injectors · 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 | C21C5/4606 |
| Official title | {Lances or injectors} |
| Display label | Lances or injectors |
| Total patents | 81 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 10 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 9 |
| 2023 | 9 |
| 2024 | 9 |
| 2025 | 2 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Blowing control method for maintaining mushroom head of bottom-blowing nozzle converter
US-2023287529-A1 · Sep 14, 2023 · US
Method for simultaneously injecting a fuel gas and an oxygen-rich gas into a unit
US-2023279516-A1 · Sep 7, 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
Molten metal sampler
US-11660594-B2 · May 30, 2023 · US
Method for dephosphorization of hot metal, and refining agent
US-11542566-B2 · Jan 3, 2023 · US
Converter co2-o2 mixed injection smelting method and method of dynamically controlling fire point area temperature
US-2022340986-A1 · Oct 27, 2022 · US
Process for injecting particulate material into a liquid metal bath
US-11466332-B2 · Oct 11, 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
Retractable nozzle for refractory-lined equipment
US-11369986-B2 · Jun 28, 2022 · US
Method of heating up furnace bottom, and burner lance used in the method
US-2022178612-A1 · Jun 9, 2022 · US
Lance nozzle
US-2022154299-A1 · May 19, 2022 · US
Fluidic burner with heat stability
US-11313554-B2 · Apr 26, 2022 · US
Method for oxygen-blowing refining of molten iron and top-blowing lance
US-11293069-B2 · Apr 5, 2022 · US
Molten metal sampler
US-2021370286-A1 · Dec 2, 2021 · US
Method for operating converter
US-11124849-B2 · Sep 21, 2021 · US
Molten metal sampler
US-11117127-B2 · Sep 14, 2021 · US
Method for oxygen-blowing refining of molten iron and top-blowing lance
US-2020392592-A1 · Dec 17, 2020 · US
Method for dephosphorization of molten iron, and refining agent
US-2020385830-A1 · Dec 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C5/4606?
- CPC C21C5/4606 is the Cooperative Patent Classification code for “Lances or injectors.”
- How many patents are filed under CPC C21C5/4606 (Lances or injectors)?
- Our database includes 81 publications tagged with this CPC code.
- Is patent activity under CPC C21C5/4606 growing?
- Publication counts under this code: 9 in 2024 vs 2 in 2025 (latest complete years).