Solid-solid separation of carbon from a hardly soluble alkaline earth sulfate
US-2026094889-A1 · Apr 2, 2026 · US
Frothers
Frothers · 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 | B03D2201/04 |
| Official title | Frothers |
| Display label | Frothers |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 9 |
| 2024 | 6 |
| 2025 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity
US-2026001783-A1 · Jan 1, 2026 · US
Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity
US-12428318-B2 · Sep 30, 2025 · US
Cellulose-based derivatives as chemical aids for mineral enrichment in froth flotation
US-12364992-B2 · Jul 22, 2025 · US
Method for froth-controlled flotation of argillaceous lepidolite ore
US-12251713-B2 · Mar 18, 2025 · US
Method for froth-controlled flotation of argillaceous lepidolite ore
US-2025050354-A1 · Feb 13, 2025 · US
Method of acylating amino acids and uses of N-acyl amino acid products
US-12187624-B2 · Jan 7, 2025 · US
Compositions and methods for separating metals and/or minerals from a source material using froth flotation
US-2024367179-A1 · Nov 7, 2024 · US
Methods for Pollucite Flotation, Plagioclase Flotation, and Quartz Purification
US-2024359190-A1 · Oct 31, 2024 · US
Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity
US-2024286929-A1 · Aug 29, 2024 · US
Method for separating individual cathode-active materials from li-ion batteries
US-12002936-B2 · Jun 4, 2024 · US
Enhanced foam removal of total suspended solids and multiply charged cations from aqueous or aqueous/oil mixed phase via increased viscoelasticity
US-11987505-B2 · May 21, 2024 · US
Flotation method and flotation system
US-2024009683-A1 · Jan 11, 2024 · US
Enhanced foam fractionation of oil phase from aqueous/oil mixed phase via increased viscoelasticity
US-2023339781-A1 · Oct 26, 2023 · US
Frothing agent for flotation of ores
US-2023302463-A1 · Sep 28, 2023 · US
Novel Cationic Collectors for Improving a Process for Froth Flotation of Silicates
US-2023302464-A1 · Sep 28, 2023 · US
Enhanced foam fractionation of oil phase from aqueous/oil mixed phase via increased viscoelasticity
US-11718540-B2 · Aug 8, 2023 · US
Si removal from aqueous streams of minerals processing plants
US-2023202873-A1 · Jun 29, 2023 · US
Method of acylating amino acids and uses of n-acyl amino acid products
US-2023183095-A1 · Jun 15, 2023 · US
New frothers for minerals recovery
US-2023137245-A1 · May 4, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03D2201/04?
- CPC B03D2201/04 is the Cooperative Patent Classification code for “Frothers.”
- How many patents are filed under CPC B03D2201/04 (Frothers)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC B03D2201/04 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).