Tailings Settling-dewatering-solidifying Device and Experimental Method Thereof
US-2022324739-A1 · Oct 13, 2022 · US
using filter presses (C02F11/123 takes precedence)
using filter presses (C02F11/123 takes precedence) · 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 | C02F11/122 |
| Official title | using filter presses (C02F11/123 takes precedence) |
| Display label | using filter presses (C02F11/123 takes precedence) |
| Total patents | 101 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 9 |
| 2019 | 9 |
| 2020 | 11 |
| 2021 | 7 |
| 2022 | 10 |
| 2023 | 12 |
| 2024 | 13 |
| 2025 | 11 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for realizing sludge safe disposal and resource recovery through sludge liquefaction and stratification
US-11459259-B2 · Oct 4, 2022 · US
Method and system for treatment of spent chloroaluminate ionic liquid catalyst and alkaline wastewater
US-11426702-B2 · Aug 30, 2022 · US
Method for realizing sludge safe disposal and resource recovery through sludge liquefaction and stratification
US-2022234929-A1 · Jul 28, 2022 · US
Manual filter press with displaceable follower stop
US-11390549-B2 · Jul 19, 2022 · US
Method for anaerobically fermenting organic solid waste
US-11345934-B1 · May 31, 2022 · US
Treatment method and treatment apparatus for waste water containing sulfuric acid, fluorine and heavy metal ions
US-11286181-B2 · Mar 29, 2022 · US
Solid-liquid separation device and method for washing lignocellulosic solid residue
US-2021332195-A1 · Oct 28, 2021 · US
Sludge dewatering device
US-11021385-B2 · Jun 1, 2021 · US
Manual Filter Press With Displaceable Follower Stop
US-2021129048-A1 · May 6, 2021 · US
Methods and systems for producing treated brines
US-2021107806-A1 · Apr 15, 2021 · US
Granulated material, method for producing granulated material, and method for producing sintered ore
US-2021087652-A1 · Mar 25, 2021 · US
Electromagnetic-force-based dewatering for sewage sludge reduction
US-10927027-B2 · Feb 23, 2021 · US
Biofilm carrier media in moving bed biofilm reactor processes
US-2021047204-A1 · Feb 18, 2021 · US
Methods and Systems for Sizing Waste Solids
US-2020406268-A1 · Dec 31, 2020 · US
Method and system for treatment of spent chloroaluminate ionic liquid catalyst and alkaline wastewater
US-2020392029-A1 · Dec 17, 2020 · US
Anaerobic digestion of organic fraction of solid waste with high quality digestate
US-2020354250-A1 · Nov 12, 2020 · US
Improved method for recovering phosphorus from sludge and plant thereof
US-2020331787-A1 · Oct 22, 2020 · US
Methods and systems for removing nitrates in zero liquid discharge applications
US-2020299166-A1 · Sep 24, 2020 · US
Flocculation of high-solids mineral slurries
US-10781117-B2 · Sep 22, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F11/122?
- CPC C02F11/122 is the Cooperative Patent Classification code for “using filter presses (C02F11/123 takes precedence).”
- How many patents are filed under CPC C02F11/122 (using filter presses (C02F11/123 takes precedence))?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC C02F11/122 growing?
- Publication counts under this code: 13 in 2024 vs 11 in 2025 (latest complete years).