Grey water system
US-2024051852-A1 · Feb 15, 2024 · US
Turbidity
Turbidity · 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 | C02F2209/11 |
| Official title | Turbidity |
| Display label | Turbidity |
| Total patents | 313 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 17 |
| 2016 | 21 |
| 2017 | 30 |
| 2018 | 29 |
| 2019 | 23 |
| 2020 | 26 |
| 2021 | 26 |
| 2022 | 32 |
| 2023 | 31 |
| 2024 | 30 |
| 2025 | 34 |
| 2026 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Multistage Fiber Filtering Apparatus Capable of Selectively Filtering
US-2017368482-A1 · Dec 28, 2017 · US
Method and device for treating foods and/or containers for holding foods
US-2017360068-A1 · Dec 21, 2017 · US
Method and device for treating foods and/or containers by means of a process liquid
US-2017360069-A1 · Dec 21, 2017 · US
Photocatalytic filter, purification device, and purification method
US-2017362096-A1 · Dec 21, 2017 · US
Filter medium, process for producing filter medium, filtration device, method for operating filtration device, and filtration system
US-2017348618-A1 · Dec 7, 2017 · US
Reverse osmosis treatment device and method for cleaning reverse osmosis treatment device
US-9833743-B2 · Dec 5, 2017 · US
Corrosion and fouling mitigation using non-phosphorus based additives
US-9828269-B2 · Nov 28, 2017 · US
Multi-stage submerged membrane distillation water treatment apparatus and a resource recovery method using same
US-2017313610-A1 · Nov 2, 2017 · US
Ultraviolet water disinfection system
US-9802840-B2 · Oct 31, 2017 · US
Water treatment apparatus and water treatment method
US-2017305758-A1 · Oct 26, 2017 · US
Raw water filtration treatment system, and method for cleaning filtration device
US-2017296975-A1 · Oct 19, 2017 · US
Water treatment method
US-2017274325-A1 · Sep 28, 2017 · US
Scrubber wastewater treatment method and scrubber wastewater treatment device
US-2017267555-A1 · Sep 21, 2017 · US
Determination of water treatment parameters based on absorbance and fluorence
US-2017234793-A1 · Aug 17, 2017 · US
Water treatment method and water treatment device
US-2017203239-A1 · Jul 20, 2017 · US
Dispersion and conditioning techniques for thick fine tailings dewatering operations
US-9708206-B2 · Jul 18, 2017 · US
Ballast water treatment device
US-2017174531-A1 · Jun 22, 2017 · US
Processing of aqueous waste streams to remove naphthenic acids
US-2017088447-A1 · Mar 30, 2017 · US
Fluid Disinfection Using Ultraviolet Light
US-2017057842-A1 · Mar 2, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F2209/11?
- CPC C02F2209/11 is the Cooperative Patent Classification code for “Turbidity.”
- How many patents are filed under CPC C02F2209/11 (Turbidity)?
- Our database includes 313 publications tagged with this CPC code.
- Is patent activity under CPC C02F2209/11 growing?
- Publication counts under this code: 30 in 2024 vs 34 in 2025 (latest complete years).