Ammoniated polycarbamide separation aids for mineral flotation
US-2026070068-A1 · Mar 12, 2026 · US
Depressants
Depressants · 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 | B03D2201/06 |
| Official title | Depressants |
| Display label | Depressants |
| Total patents | 56 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 11 |
| 2019 | 6 |
| 2020 | 9 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compositions and methods for froth modification
US-2025387792-A1 · Dec 25, 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
Dithiocarbamate depressants, methods and uses thereof in froth flotation mineral separation
US-2024149277-A1 · May 9, 2024 · US
Method for flotation of a silicate-containing iron ore
US-2024082854-A1 · Mar 14, 2024 · US
Method for flotation of a silicate-containing iron ore
US-2024066528-A1 · Feb 29, 2024 · US
Slow-release inhibitor for high-magnesium sulfide mineral flotation and application thereof
US-11779935-B2 · Oct 10, 2023 · US
Flotation reagents from acidic olive oil
US-11638923-B1 · May 2, 2023 · US
Cationic polymer selective depressants and use thereof in mineral ore purification methods
US-11612898-B2 · Mar 28, 2023 · US
Method For Flotation Of A Phosphate-Containing Ore
US-2023066944-A1 · Mar 2, 2023 · US
Collector composition
US-2022266263-A1 · Aug 25, 2022 · US
Peptide binding to arsenic-containing mineral and use thereof
US-11254707-B2 · Feb 22, 2022 · US
Novel method for the flotation of bastnaesite ore
US-2021379604-A1 · Dec 9, 2021 · US
Use Of Polyols For Improving A Process For Reverse Froth Flotation Of Iron Ore
US-2021252525-A1 · Aug 19, 2021 · US
Mineral beneficiation method using bioreagent extracted from gram positive bacteria
US-2020346224-A1 · Nov 5, 2020 · US
Arsenic removal from lead concentrate by ozone treatment and reverse flotation
US-10822673-B1 · Nov 3, 2020 · US
Slow-release inhibitor for high-magnesium sulfide mineral flotation and application thereof
US-2020324300-A1 · Oct 15, 2020 · US
Compositions and methods for reverse froth flotation of phosphate ores
US-10737281-B2 · Aug 11, 2020 · US
Agglomerated Hemicellulose Compositions, Methods of Preparation Thereof, and Processes for Enriching a Desired Mineral from an Ore
US-2020238302-A1 · Jul 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B03D2201/06?
- CPC B03D2201/06 is the Cooperative Patent Classification code for “Depressants.”
- How many patents are filed under CPC B03D2201/06 (Depressants)?
- Our database includes 56 publications tagged with this CPC code.
- Is patent activity under CPC B03D2201/06 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).