Foreign matter removal device
US-12551905-B2 · Feb 17, 2026 · US
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with swinging flaps or revolving sluices; Sluices; Check-valves
with swinging flaps or revolving sluices; Sluices; Check-valves · 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 | B04C5/15 |
| Official title | with swinging flaps or revolving sluices; Sluices; Check-valves |
| Display label | with swinging flaps or revolving sluices; Sluices; Check-valves |
| Total patents | 23 |
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 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and method of trapping an exhaust material from a substrate-processing process and apparatus for processing a substrate including the trapping apparatus
US-2025352949-A1 · Nov 20, 2025 · US
Apparatus trapping an exhaust material from a substrate-processing process and apparatus for processing a substrate including the trapping apparatus
US-12390763-B2 · Aug 19, 2025 · US
Foreign matter removal device
US-2025256291-A1 · Aug 14, 2025 · US
Gas-liquid separator
US-2024335843-A1 · Oct 10, 2024 · US
Cyclone separator particularly for a powder recovery device of a powder coating system
US-12090494-B2 · Sep 17, 2024 · US
Down-hole separator for in-situ gas-lift
US-11828154-B2 · Nov 28, 2023 · US
Down-hole separator for in-situ gas-lift
US-2023220759-A1 · Jul 13, 2023 · US
Cyclone separator particularly for a powder recovery device of a powder coating system
US-2023111882-A1 · Apr 13, 2023 · US
Apparatus and method of trapping an exhaust material from a substrate-processing process and apparatus for processing a substrate including the trapping apparatus
US-2023068823-A1 · Mar 2, 2023 · US
Inline vortex demister
US-11351492-B2 · Jun 7, 2022 · US
Flow and pressure control in cyclonic filter arrays
US-2022161173-A1 · May 26, 2022 · US
Flow and pressure control in cyclonic filter arrays
US-11247157-B2 · Feb 15, 2022 · US
Integrated vortex separator
US-11123677-B2 · Sep 21, 2021 · US
Inline Vortex Demister
US-2021138378-A1 · May 13, 2021 · US
Flow and pressure control in cyclonic filter arrays
US-2020360847-A1 · Nov 19, 2020 · US
Integrated Vortex Separator
US-2020261840-A1 · Aug 20, 2020 · US
Cyclone separator and methods for conveying dry bulk material
US-2020197847-A1 · Jun 25, 2020 · US
Foreign substance removal apparatus, circulation system and vehicle cooling system
US-10369497-B2 · Aug 6, 2019 · US
Foreign substance removal apparatus, circulation system and vehicle cooling system
US-2018028943-A1 · Feb 1, 2018 · US