Method and system for monitoring properties of an aqueous stream
US-12043559-B2 · Jul 23, 2024 · US
Density control of clear liquid or sediment, e.g. optical control {; Control of physical properties}
Density control of clear liquid or sediment, e.g. optical control {; Control of physical properties} · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D21/32 |
| Official title | Density control of clear liquid or sediment, e.g. optical control {; Control of physical properties} |
| Display label | Density control of clear liquid or sediment, e.g. optical control {; Control of physical properties} |
| Total patents | 47 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 3 |
| 2019 | 5 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Differential pressure based automated sand detection and handling system for oil and gas well operations
US-11938422-B2 · Mar 26, 2024 · US
Suspended solids measurement of wastewater
US-11906426-B2 · Feb 20, 2024 · US
A control system of a copper extraction process
US-2023383378-A1 · Nov 30, 2023 · US
Tailings settling-dewatering-solidifying device and experimental method thereof
US-11787721-B2 · Oct 17, 2023 · US
Reactor and method for biological treatment of wastewater
US-11767244-B2 · Sep 26, 2023 · US
Sampling device for coagulation treatment device, coagulation treatment device, and water treatment method
US-2023295022-A1 · Sep 21, 2023 · US
Flotation cell for water treatment
US-2023212036-A1 · Jul 6, 2023 · US
Immersed active infrared self-cleaning secondary sedimentation tank sludge blanket induction device and application method thereof
US-11673076-B2 · Jun 13, 2023 · US
Flocculation state monitoring sensor
US-11474036-B2 · Oct 18, 2022 · US
Tailings Settling-dewatering-solidifying Device and Experimental Method Thereof
US-2022324739-A1 · Oct 13, 2022 · US
Apparatus, systems, and methods for improving slop water treatment efficiency
US-11401171-B2 · Aug 2, 2022 · US
Ultra low power acoustic separation
US-11395982-B1 · Jul 26, 2022 · US
Immersed active infrared self-cleaning secondary sedimentation tank sludge blanket induction device and application method thereof
US-2022152529-A1 · May 19, 2022 · US
Rapid measurement of formed blood component sedimentation rate from small sample volumes
US-11320355-B2 · May 3, 2022 · US
Method and arrangement for controlling a dewatering process
US-11224829-B2 · Jan 18, 2022 · US
Turbid matter separating apparatus, turbid matter separating method, and turbid matter separating system
US-11161061-B2 · Nov 2, 2021 · US
Apparatus, systems, and methods for improving slop water treatment efficiency
US-2021331941-A1 · Oct 28, 2021 · US
Differential pressure based automated sand detection and handling system for oil and gas well operations
US-2021299595-A1 · Sep 30, 2021 · US
Flocculation state monitoring sensor
US-2021262933-A1 · Aug 26, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D21/32?
- CPC B01D21/32 is the Cooperative Patent Classification code for “Density control of clear liquid or sediment, e.g. optical control {; Control of physical properties}.”
- How many patents are filed under CPC B01D21/32 (Density control of clear liquid or sediment, e.g. optical control {; Control of physical properties})?
- Our database includes 47 publications tagged with this CPC code.
- Is patent activity under CPC B01D21/32 growing?
- Publication counts under this code: 6 in 2023 vs 3 in 2024 (latest complete years).