Wastewater treatment device and method
US-12344542-B2 · Jul 1, 2025 · US
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"Venturi" aeration means
"Venturi" aeration means · 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 | C02F3/1294 |
| Official title | {"Venturi" aeration means} |
| Display label | "Venturi" aeration means |
| Total patents | 14 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 2 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wastewater treatment device and method
US-2024158270-A1 · May 16, 2024 · US
Eductor-based membrane bioreactor
US-11339068-B2 · May 24, 2022 · US
Confined tube aspiration aeration devices and systems
US-11318432-B2 · May 3, 2022 · US
Ultraviolet light fluid sanitization systems
US-2021300794-A1 · Sep 30, 2021 · US
Cultivation and dispensing of bacteria
US-10865374-B2 · Dec 15, 2020 · US
Confined tube aspiration aeration devices and systems
US-2020261865-A1 · Aug 20, 2020 · US
Eductor-based membrane bioreactor
US-2020055756-A1 · Feb 20, 2020 · US
Eductor-based membrane bioreactor
US-10392279-B2 · Aug 27, 2019 · US
Water treatment device
US-10138147-B2 · Nov 27, 2018 · US
Aeration of liquid suitable for aqueous waste treatment
US-2018043316-A1 · Feb 15, 2018 · US
Cultivation and dispensing of bacteria
US-2017313969-A1 · Nov 2, 2017 · US
Multistage aeration system
US-2017144910-A1 · May 25, 2017 · US
Water treatment device
US-2016145130-A1 · May 26, 2016 · US