System and method for treatment of biomass containing wastewater for renewable energy
US-2025136490-A1 · May 1, 2025 · US
Combined use of inorganic and organic substances, being added in the same treatment step
Combined use of inorganic and organic substances, being added in the same treatment step · 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 | C02F11/148 |
| Official title | Combined use of inorganic and organic substances, being added in the same treatment step |
| Display label | Combined use of inorganic and organic substances, being added in the same treatment step |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for dewatering slurries
US-2024395234-A1 · Nov 28, 2024 · US
Process of removing aluminum waste in wastewater
US-2024279085-A1 · Aug 22, 2024 · US
Systems and methods for dewatering slurries
US-12067962-B2 · Aug 20, 2024 · US
Method for deodorizing sludge with metal salt and tannin extract together, deodorized sludge, and use thereof
US-11952298-B2 · Apr 9, 2024 · US
Method for deodorizing sludge with metal salt and tannin extract together, deodorized sludge, and use thereof
US-2024083798-A1 · Mar 14, 2024 · US
Terpolymers for oil sands tailings treatment
US-11738292-B2 · Aug 29, 2023 · US
Method for processing sludge
US-11407668-B1 · Aug 9, 2022 · US
Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering
US-2022055083-A1 · Feb 24, 2022 · US
Process for dewatering an aqueous process stream
US-2021371316-A1 · Dec 2, 2021 · US
Co-deposition of oil sand tailings streams and tailings products
US-2021347667-A1 · Nov 11, 2021 · US
Treatment of thick fine tailings including chemical immobilization, polymer flocculation and dewatering
US-11124706-B2 · Sep 21, 2021 · US
Systems and methods for dewatering slurries
US-2021269331-A1 · Sep 2, 2021 · US
Sludge dewatering process assisted by flocculating reactant and plant for the implementation of such a process
US-10981820-B2 · Apr 20, 2021 · US
Terpolymers for oil sands tailings treatment
US-2021060455-A1 · Mar 4, 2021 · US
Surface-coated calcium carbonate-containing material and process for the purification of water
US-10843932-B2 · Nov 24, 2020 · US
Improved sludge dewatering process assisted by flocculating reactant and plant for the implementation of such a process
US-2020290911-A1 · Sep 17, 2020 · US
Method for treating sludge
US-2020102239-A1 · Apr 2, 2020 · US
Methods of removing fines and coarse particles from oil sand tailings, and related mixtures
US-10570035-B2 · Feb 25, 2020 · US
Enhanced flocculation of intractable slurries using silicate ions
US-2020002197-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C02F11/148?
- CPC C02F11/148 is the Cooperative Patent Classification code for “Combined use of inorganic and organic substances, being added in the same treatment step.”
- How many patents are filed under CPC C02F11/148 (Combined use of inorganic and organic substances, being added in the same treatment step)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC C02F11/148 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).