Method and system for pre-treating high strength wastewater
US-2024182343-A1 · Jun 6, 2024 · US
with air (aeration of stretches of water C02F7/00)
with air (aeration of stretches of water C02F7/00) · 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 | C02F1/74 |
| Official title | with air (aeration of stretches of water C02F7/00) |
| Display label | with air (aeration of stretches of water C02F7/00) |
| Total patents | 222 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 23 |
| 2016 | 14 |
| 2017 | 24 |
| 2018 | 12 |
| 2019 | 23 |
| 2020 | 25 |
| 2021 | 17 |
| 2022 | 20 |
| 2023 | 30 |
| 2024 | 13 |
| 2025 | 18 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aeration device, a use thereof, and water purification installation with such an aeration device
US-9844760-B2 · Dec 19, 2017 · US
Exhaust gas treatment device and waste water treatment method for exhaust gas treatment device
US-9821268-B2 · Nov 21, 2017 · US
Sulfite Preconditioning Systems And Methods To Reduce Mercury Concentrations In Waste Water
US-2017326498-A1 · Nov 16, 2017 · US
Water treatment apparatus and water treatment method
US-2017305758-A1 · Oct 26, 2017 · US
Boron recovery apparatus, boron recovery method, and boron recovery system
US-9790096-B2 · Oct 17, 2017 · US
Foam intercept system
US-9771279-B2 · Sep 26, 2017 · US
Processing device and processing method for hydrogen-sulphide-containing barren solution
US-9731980-B2 · Aug 15, 2017 · US
Apparatus and method for reduction in ammoniacal nitrogen from waste waters
US-9725338-B2 · Aug 8, 2017 · US
Water treatment method and water treatment apparatus
US-2017197845-A1 · Jul 13, 2017 · US
Use of magnesium hydroxide in the neutralization of pta wastewater
US-2017190604-A1 · Jul 6, 2017 · US
Method of treating the wastewater from isophorone production by high-pressure wet oxidation
US-2017166464-A1 · Jun 15, 2017 · US
Catalytic oxidation of aqueous organic contaminants
US-2017152166-A1 · Jun 1, 2017 · US
Plant for treatment of liquid as well as method for controlling such a plant
US-2017144909-A1 · May 25, 2017 · US
Selenium removal using aluminum salt at conditioning and reaction stages to activate zero-valent iron (zvi) in pironox process
US-2017129792-A1 · May 11, 2017 · US
Device for purifying cropland effluents
US-2017121194-A1 · May 4, 2017 · US
Seawater plant with inclined aeration and mixed auto recovery
US-9630864-B2 · Apr 25, 2017 · US
Metal oxide nanofibrous materials for photodegradation of environmental toxins
US-2017056873-A1 · Mar 2, 2017 · US
Removal of selenocyanate from refinery sour water stripper wastewater
US-2017036933-A1 · Feb 9, 2017 · US
Method and apparatus for catalyzing seawater aeration basins
US-9550688-B2 · Jan 24, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F1/74?
- CPC C02F1/74 is the Cooperative Patent Classification code for “with air (aeration of stretches of water C02F7/00).”
- How many patents are filed under CPC C02F1/74 (with air (aeration of stretches of water C02F7/00))?
- Our database includes 222 publications tagged with this CPC code.
- Is patent activity under CPC C02F1/74 growing?
- Publication counts under this code: 13 in 2024 vs 18 in 2025 (latest complete years).