Ozone-photocatalysis reactor and water treatment method
US-2017369346-A1 · Dec 28, 2017 · US
Reactive oxygen species, singlet oxygen, OH radical
Reactive oxygen species, singlet oxygen, OH radical · 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 | C02F2305/023 |
| Official title | Reactive oxygen species, singlet oxygen, OH radical |
| Display label | Reactive oxygen species, singlet oxygen, OH radical |
| Total patents | 395 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 16 |
| 2017 | 31 |
| 2018 | 39 |
| 2019 | 28 |
| 2020 | 39 |
| 2021 | 52 |
| 2022 | 49 |
| 2023 | 39 |
| 2024 | 40 |
| 2025 | 35 |
| 2026 | 11 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Water treatment apparatus and water treatment method
US-2017369341-A1 · Dec 28, 2017 · US
Destruction of dense nonaqueous phase liquids (dnapls) using a time-release formulation
US-2017354837-A1 · Dec 14, 2017 · US
Water treatment device
US-2017349456-A1 · Dec 7, 2017 · US
Liquid treatment unit, toilet seat with washer, washing machine, and liquid treatment apparatus
US-9828261-B2 · Nov 28, 2017 · US
Efficient, manganese catalyzed process to decompose cyanide ions and hydrogen cyanide for water decontamination
US-2017305769-A1 · Oct 26, 2017 · US
Sunlight active composite photocatalyst for water purification
US-9795948-B2 · Oct 24, 2017 · US
Engineered water nanostructures (ewns) and uses thereof
US-2017298407-A1 · Oct 19, 2017 · US
Method for degrading artificial sweeteners from sewage
US-2017267564-A1 · Sep 21, 2017 · US
Water treatment device and humidification device
US-2017267551-A1 · Sep 21, 2017 · US
Method and system for providing ultrapure water
US-9764968-B2 · Sep 19, 2017 · US
System and method to control h2o2 level in advanced oxidation processes
US-2017247273-A1 · Aug 31, 2017 · US
Treatment of water with uv/chlorine advanced oxidation
US-2017240436-A1 · Aug 24, 2017 · US
Apparatus and method for reduction in ammoniacal nitrogen from waste waters
US-9725338-B2 · Aug 8, 2017 · US
System and method for measuring and treating a liquid stream
US-9725343-B2 · Aug 8, 2017 · US
Molybdenum disulfide powder and method for manufacturing the same, method for degrading an organic material and method for sterilizing
US-2017209855-A1 · Jul 27, 2017 · US
Liquid treatment apparatus
US-9708201-B2 · Jul 18, 2017 · US
Copper nanoparticles for degradation of pollutants
US-2017173573-A1 · Jun 22, 2017 · US
Acidic electrolyzed water and production method therefor
US-2017156341-A1 · Jun 8, 2017 · US
Liquid treatment unit, toilet seat with washer, washing machine, and liquid treatment apparatus
US-2017152164-A1 · Jun 1, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2305/023?
- CPC C02F2305/023 is the Cooperative Patent Classification code for “Reactive oxygen species, singlet oxygen, OH radical.”
- How many patents are filed under CPC C02F2305/023 (Reactive oxygen species, singlet oxygen, OH radical)?
- Our database includes 395 publications tagged with this CPC code.
- Is patent activity under CPC C02F2305/023 growing?
- Publication counts under this code: 40 in 2024 vs 35 in 2025 (latest complete years).