Remote monitoring device for ballast water treatment system and remote monitoring method
US-10145832-B2 · Dec 4, 2018 · US
Oxidation reduction potential [ORP]
Oxidation reduction potential [ORP] · 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 | C02F2209/04 |
| Official title | Oxidation reduction potential [ORP] |
| Display label | Oxidation reduction potential [ORP] |
| Total patents | 270 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 15 |
| 2017 | 21 |
| 2018 | 16 |
| 2019 | 31 |
| 2020 | 33 |
| 2021 | 28 |
| 2022 | 32 |
| 2023 | 33 |
| 2024 | 26 |
| 2025 | 12 |
| 2026 | 12 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multi parameter swimming pool fluid analysis and regulating method and device
US-2018266131-A1 · Sep 20, 2018 · US
Method for onsite production of chlorine dioxide
US-2018244550-A1 · Aug 30, 2018 · US
Chlorination-assisted coagulation processes for water purification
US-2018230026-A1 · Aug 16, 2018 · US
Water treatment apparatus and water treatment method
US-10035718-B2 · Jul 31, 2018 · US
Measuring Phosphorus in Wastewater Using a Self-Organizing RBF Neural Network
US-2018164272-A1 · Jun 14, 2018 · US
Aeration control system and method for wastewater
US-2018127286-A1 · May 10, 2018 · US
Nitrate removal by ion exchange and bioregeneration
US-2018118598-A1 · May 3, 2018 · US
Apparatus for sewage deep denitrification with high pollutant carrying capacity and low energy consumption, and method for running the same
US-2018099885-A1 · Apr 12, 2018 · US
Water treatment process using pyrophylite ceramic membrane
US-2018086653-A1 · Mar 29, 2018 · US
Orbital wastewater treatment system and method of operating same
US-9896361-B2 · Feb 20, 2018 · US
Water treatment method and water treatment system
US-2018029907-A1 · Feb 1, 2018 · US
Treatment of Industrial Water Systems
US-2018001262-A1 · Jan 4, 2018 · US
Internal sulfur cycling sani (isc-sani) process for biological wastewater treatment
US-2017369350-A1 · Dec 28, 2017 · US
Aquaculture system
US-2017362103-A1 · Dec 21, 2017 · US
Water treatment apparatus and water treatment method
US-2017362107-A1 · Dec 21, 2017 · US
Hybrid activated iron-biological water treatment system and method
US-2017362108-A1 · Dec 21, 2017 · US
Corrosion and fouling mitigation using non-phosphorus based additives
US-9828269-B2 · Nov 28, 2017 · US
Sulfite Preconditioning Systems And Methods To Reduce Mercury Concentrations In Waste Water
US-2017326498-A1 · Nov 16, 2017 · US
Treating and recylcing oilfield waste water
US-9802846-B2 · Oct 31, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2209/04?
- CPC C02F2209/04 is the Cooperative Patent Classification code for “Oxidation reduction potential [ORP].”
- How many patents are filed under CPC C02F2209/04 (Oxidation reduction potential [ORP])?
- Our database includes 270 publications tagged with this CPC code.
- Is patent activity under CPC C02F2209/04 growing?
- Publication counts under this code: 26 in 2024 vs 12 in 2025 (latest complete years).