Method for calcining mineral rock in a regenerative parallel-flow vertical shaft furnace and furnace used
US-12344556-B2 · Jul 1, 2025 · US
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in shaft or vertical furnaces (shaft or vertical furnaces in general F27B1/00)
in shaft or vertical furnaces (shaft or vertical furnaces in general F27B1/00) · 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 | C04B2/12 |
| Official title | in shaft or vertical furnaces (shaft or vertical furnaces in general F27B1/00) |
| Display label | in shaft or vertical furnaces (shaft or vertical furnaces in general F27B1/00) |
| Total patents | 24 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for decarbonation of carbonated materials and device thereof
US-2025197278-A1 · Jun 19, 2025 · US
Method of calcining mineral rock in a regenerative parallel-flow vertical shaft furnace, and furnace used
US-2025162934-A1 · May 22, 2025 · US
Method of calcining mineral rock in a regenerative parallel-flow vertical shaft furnace, and furnace used
US-2025162935-A1 · May 22, 2025 · US
Parallel-flow regenerative shaft kiln and method for burning carbonate rock
US-2024361074-A1 · Oct 31, 2024 · US
VACUUM SWING CALCINATION PROCESS TO PRODUCE HIGH PURITY CO2 FROM CaCO3
US-2024278176-A1 · Aug 22, 2024 · US
Method and installation for producing lime or dolime
US-2024217873-A1 · Jul 4, 2024 · US
Process for decarbonating carbonated materials and device therefor
US-2024018037-A1 · Jan 18, 2024 · US
Parallel-flow regenerative shaft kiln and method for calcining carbonate rock
US-2023257302-A1 · Aug 17, 2023 · US
Method of calcining mineral rock in a regenerative parallel-flow vertical shaft furnace, and furnace used
US-2023227353-A1 · Jul 20, 2023 · US
Method and shaft furnace for burning carbon-containing material in a shaft furnace
US-11703280-B2 · Jul 18, 2023 · US
Method for burning carbon-containing material in a pfr shaft furnace
US-2023106711-A1 · Apr 6, 2023 · US
Method and shaft furnace for burning carbon-containing material in a shaft furnace
US-2022170698-A1 · Jun 2, 2022 · US
Process for calcining mineral rock in a regenerative parallel-flow vertical shaft furnace, and furnace used
US-11280546-B2 · Mar 22, 2022 · US
System having a furnace and method for operating such a system
US-11034616-B2 · Jun 15, 2021 · US
Furnace and method for operating a furnace
US-10947125-B2 · Mar 16, 2021 · US
Furnace and method for operating a furnace
US-2019345037-A1 · Nov 14, 2019 · US
System having a furnace and method for operating such a system
US-2019077705-A1 · Mar 14, 2019 · US
Process for Calcining Mineral Rock in a Regenerative Parallel-Flow Vertical Shaft Furnace, and Furnace Used
US-2018283788-A1 · Oct 4, 2018 · US
Pervious composite materials, methods of production and uses thereof
US-9938189-B2 · Apr 10, 2018 · US