Apparatus and process for fog mitigation
US-2025075455-A1 · Mar 6, 2025 · US
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Fan arrangements for providing forced draft
Fan arrangements for providing forced draft · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D2247/12 |
| Official title | Fan arrangements for providing forced draft |
| Display label | Fan arrangements for providing forced draft |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 1 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Packed tower
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Air purifier
US-11794143-B2 · Oct 24, 2023 · US
Air purifier and air purifying system
US-11752461-B2 · Sep 12, 2023 · US
Packed tower
US-2022274044-A1 · Sep 1, 2022 · US
Active wet scrubbing filtration system
US-11260336-B2 · Mar 1, 2022 · US
Air Purifier
US-2021129070-A1 · May 6, 2021 · US
Humidity control device and separation device
US-2021053010-A1 · Feb 25, 2021 · US
Air purifier and air purifying system
US-2020298161-A1 · Sep 24, 2020 · US
Active wet scrubbing filtration system
US-2020197854-A1 · Jun 25, 2020 · US
Apparatus and method for reducing air pollution from exhaust
US-9638417-B2 · May 2, 2017 · US
Installation for emptying bags of pulverulent product and method employing the installation
US-9233766-B2 · Jan 12, 2016 · US
Apparatus and method for reducing air pollution from exhaust
US-2015198072-A1 · Jul 16, 2015 · US