Grey water system
US-2024051852-A1 · Feb 15, 2024 · US
Ozone generators
Ozone generators · 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 | C02F2201/782 |
| Official title | Ozone generators |
| Display label | Ozone generators |
| Total patents | 159 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 19 |
| 2019 | 23 |
| 2020 | 25 |
| 2021 | 18 |
| 2022 | 22 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Apparatus and operating method for deep denitrification and toxicity reduction of wastewater
US-2019389756-A1 · Dec 26, 2019 · US
Cleaning apparatus for semiconductor substrates and cleaning method for semiconductor substrates
US-2019374911-A1 · Dec 12, 2019 · US
Purification treatment method of liquid containing harmful substance, and purification treatment device of liquid containing harmful substance for carrying out said method
US-10493423-B2 · Dec 3, 2019 · US
Ozone sensor
US-2019315633-A1 · Oct 17, 2019 · US
Systems for producing high-concentration of dissolved ozone in liquid media
US-2019300405-A1 · Oct 3, 2019 · US
Separation of ozone oxidation in liquid media into three unit operations for process optimization
US-2019300403-A1 · Oct 3, 2019 · US
Methods for producing high-concentration of dissolved ozone in liquid media
US-2019299170-A1 · Oct 3, 2019 · US
Ultrasound and acoustophoresis for water purification
US-10427956-B2 · Oct 1, 2019 · US
Technologies for sanitizing reservoirs
US-10427961-B2 · Oct 1, 2019 · US
Technologies for sanitizing humidifiers
US-2019262491-A1 · Aug 29, 2019 · US
Ozone water and method for producing the same
US-10351451-B2 · Jul 16, 2019 · US
Acoustic processes for transfection and transduction
US-2019211462-A1 · Jul 11, 2019 · US
Ozone generator unit and system
US-10336612-B2 · Jul 2, 2019 · US
Gas-dissolved liquid producing apparatus
US-2019193034-A1 · Jun 27, 2019 · US
Technologies for sanitizing humidifiers
US-10322199-B2 · Jun 18, 2019 · US
Coolant purification
US-2019165388-A1 · May 30, 2019 · US
Sludge treatment system and sludge treatment method
US-10259731-B2 · Apr 16, 2019 · US
Wastewater treatment device and wastewater treatment method
US-2019092662-A1 · Mar 28, 2019 · US
Water treatment device and water treatment method
US-2019077683-A1 · Mar 14, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2201/782?
- CPC C02F2201/782 is the Cooperative Patent Classification code for “Ozone generators.”
- How many patents are filed under CPC C02F2201/782 (Ozone generators)?
- Our database includes 159 publications tagged with this CPC code.
- Is patent activity under CPC C02F2201/782 growing?
- Publication counts under this code: 10 in 2024 vs 12 in 2025 (latest complete years).