Wastewater treatment device and wastewater treatment method
US-12060288-B2 · Aug 13, 2024 · US
Diffusers or nozzles for ozonation
Diffusers or nozzles for ozonation · 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 | C02F2201/784 |
| Official title | Diffusers or nozzles for ozonation |
| Display label | Diffusers or nozzles for ozonation |
| Total patents | 64 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 3 |
| 2018 | 8 |
| 2019 | 12 |
| 2020 | 8 |
| 2021 | 10 |
| 2022 | 11 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Wash water processing apparatus and sterilization and purification unit, and wash water processing method of semiconductor element or liquid-crystal glasses
US-11975995-B2 · May 7, 2024 · US
Water treatment system
US-11807560-B2 · Nov 7, 2023 · US
Ozone water decomposition apparatus and method
US-2023339790-A1 · Oct 26, 2023 · US
Water treatment system
US-11795078-B2 · Oct 24, 2023 · US
Faucet configured to discharge ozone water
US-11623883-B2 · Apr 11, 2023 · US
Method for electrolysis-ozone-corrosion inhibitor/electrolysis-ozone-hydrogen peroxide-corrosion inhibitor coupling treatment on toxic and refractory wastewater
US-11548797-B2 · Jan 10, 2023 · US
Double-tank oxidation pond reactor for evaluating ozone catalytic oxidation efficiency
US-11535540-B2 · Dec 27, 2022 · US
Method for electrolysis-ozone-corrosion inhibitor/electrolysis-ozone-hydrogen peroxide-corrosion inhibitor coupling treatment on toxic and refractory wastewater
US-2022356086-A1 · Nov 10, 2022 · US
Separation of ozone oxidation in liquid media into three unit operations for process optimization
US-11434153-B2 · Sep 6, 2022 · US
Wash water processing apparatus and sterilization and purification unit, and wash water processing method of semiconductor element or liquid-crystal glasses
US-2022204378-A1 · Jun 30, 2022 · US
Gas dissolution supply apparatus and gas dissolution supply method
US-11352274-B2 · Jun 7, 2022 · US
Wastewater treatment device and wastewater treatment method
US-2022162099-A1 · May 26, 2022 · US
Wash water processing method
US-11306014-B2 · Apr 19, 2022 · US
Gas solution supply device
US-2022105478-A1 · Apr 7, 2022 · US
Enhanced Membrane Performance Using Ozone
US-2022098067-A1 · Mar 31, 2022 · US
Wastewater treatment device and wastewater treatment method
US-11279640-B2 · Mar 22, 2022 · US
Water treatment system
US-11274052-B2 · Mar 15, 2022 · US
Water treatment system
US-2021395118-A1 · Dec 23, 2021 · US
Water treatment system
US-2021395119-A1 · Dec 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2201/784?
- CPC C02F2201/784 is the Cooperative Patent Classification code for “Diffusers or nozzles for ozonation.”
- How many patents are filed under CPC C02F2201/784 (Diffusers or nozzles for ozonation)?
- Our database includes 64 publications tagged with this CPC code.
- Is patent activity under CPC C02F2201/784 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).