Foreign matter removal device
US-12551905-B2 · Feb 17, 2026 · US
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Baffles in the vortex finder
Baffles in the vortex finder · 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 | B04C2005/136 |
| Official title | {Baffles in the vortex finder} |
| Display label | Baffles in the vortex finder |
| Total patents | 21 |
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 |
| 2017 | 3 |
| 2018 | 1 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 3 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vortex finder for a cyclonic separator
US-12533682-B2 · Jan 27, 2026 · US
Vortex finder for a cyclonic separator
US-12496593-B2 · Dec 16, 2025 · US
Hydrogen-water separator for fuel cell
US-12469868-B2 · Nov 11, 2025 · US
Foreign matter removal device
US-2025256291-A1 · Aug 14, 2025 · US
Hydrogen-water separator for fuel cell
US-2023261234-A1 · Aug 17, 2023 · US
Cyclone separation device
US-11612900-B2 · Mar 28, 2023 · US
Vortex finder for a cyclonic separator
US-2023044023-A1 · Feb 9, 2023 · US
Vortex finder for a cyclonic separator
US-2022111403-A1 · Apr 14, 2022 · US
Cyclone separation device
US-2022040711-A1 · Feb 10, 2022 · US
Integrated vortex separator
US-11123677-B2 · Sep 21, 2021 · US
Bypass flow regulator
US-11001382-B2 · May 11, 2021 · US
Cyclone with guide vanes
US-10792677-B2 · Oct 6, 2020 · US
Bypass Flow Regulator
US-2020262560-A1 · Aug 20, 2020 · US
Integrated Vortex Separator
US-2020261840-A1 · Aug 20, 2020 · US
Cyclone with guide vanes
US-2020122162-A1 · Apr 23, 2020 · US
Vortex finder for a cyclonic separator
US-10016768-B2 · Jul 10, 2018 · US
Dust collector and vacuum cleaner having the same
US-2017296016-A1 · Oct 19, 2017 · US
Dust collector and vacuum cleaner having the same
US-2017296017-A1 · Oct 19, 2017 · US
Vortex finder for a cyclonic separator
US-2017008014-A1 · Jan 12, 2017 · US