Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2025188565-A1 · Jun 12, 2025 · US
Blowing from above (C21C5/35 takes precedence)
Blowing from above (C21C5/35 takes precedence) · 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 | C21C5/32 |
| Official title | Blowing from above (C21C5/35 takes precedence) |
| Display label | Blowing from above (C21C5/35 takes precedence) |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2020 | 3 |
| 2021 | 5 |
| 2022 | 9 |
| 2023 | 4 |
| 2024 | 8 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Furnace slag amount estimation device, furnace slag amount estimation method, and molten steel production method
US-2024393159-A1 · Nov 28, 2024 · US
Method for operating converter and method for producing molten steel
US-2024167112-A1 · May 23, 2024 · US
Molten metal component estimation device, method of estimating molten metal component, and method of manufacturing molten metal
US-11966669-B2 · Apr 23, 2024 · US
Lance nozzle
US-11959147-B2 · Apr 16, 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
Refining method of molten iron and manufacturing method of molten steel using same
US-2024068060-A1 · Feb 29, 2024 · US
Molten iron refining method
US-2024060149-A1 · Feb 22, 2024 · US
Lance for blowing oxygen in steelmaking
US-2023366052-A1 · Nov 16, 2023 · US
Converter CO2—O2 mixed injection smelting method and method of dynamically controlling fire point area temperature
US-11788160-B2 · Oct 17, 2023 · US
Method for simultaneously injecting a fuel gas and an oxygen-rich gas into a unit
US-2023279516-A1 · Sep 7, 2023 · US
Smelting assembly for the production of steel
US-11549156-B2 · Jan 10, 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
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162725-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162064-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162726-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162076-A1 · May 26, 2022 · US
Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production
US-2022162077-A1 · May 26, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C21C5/32?
- CPC C21C5/32 is the Cooperative Patent Classification code for “Blowing from above (C21C5/35 takes precedence).”
- How many patents are filed under CPC C21C5/32 (Blowing from above (C21C5/35 takes precedence))?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC C21C5/32 growing?
- Publication counts under this code: 8 in 2024 vs 1 in 2025 (latest complete years).