Cationic polymer selective depressants and use thereof in mineral ore purification methods
US-11612898-B2 · Mar 28, 2023 · US
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differential
differential · 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 | B03D1/06 |
| Official title | differential |
| Display label | differential |
| Total patents | 23 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 3 |
| 2023 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Flotation arrangement, its use, a plant and a method
US-11548013-B2 · Jan 10, 2023 · US
Separation of copper and molybdenum sulfides from pyrite using a sea water/desalinated water hybrid process
US-11060165-B2 · Jul 13, 2021 · US
Flotation arrangement
US-10960408-B2 · Mar 30, 2021 · US
Flotation arrangement
US-10913075-B2 · Feb 9, 2021 · US
Arsenic removal from lead concentrate by ozone treatment and reverse flotation
US-10822673-B1 · Nov 3, 2020 · US
Recovery of molybdenum using sodium metabisulfite and a thiocarbonate depressant
US-10654048-B2 · May 19, 2020 · US
Flotation arrangement
US-2020061636-A1 · Feb 27, 2020 · US
A flotation arrangement, its use, a plant and a method
US-2020023380-A1 · Jan 23, 2020 · US
Flotation arrangement
US-2019388905-A1 · Dec 26, 2019 · US
Differential flotation of sulfide ores for recovering refractory gold
US-10434521-B2 · Oct 8, 2019 · US
Glycerides and fatty acid mixtures and methods of using same
US-10384958-B2 · Aug 20, 2019 · US
Cationic polymer selective depressants and use thereof in mineral ore purification methods
US-2019217311-A1 · Jul 18, 2019 · US
Amine-aldehyde resins and uses thereof in separation processes
US-2019112424-A1 · Apr 18, 2019 · US
Amine-aldehyde resins and uses thereof in separation processes
US-10150839-B2 · Dec 11, 2018 · US
Differential flotation of sulfide ores for recovering refractory gold
US-2018280992-A1 · Oct 4, 2018 · US
Recovery of Molybdenum Using Sodium Metabisulfite and a Thiocarbonate Depressant
US-2018257089-A1 · Sep 13, 2018 · US
Methods for facilitating mineral extraction
US-9889452-B2 · Feb 13, 2018 · US
Engulfed nano/micro bubbles for improved recovery of large particles in a flotation cell
US-2017014834-A1 · Jan 19, 2017 · US
Method for improving selectivity and recovery in the flotation of nickel sulphide ores that contain pyrrhotite by exploiting the synergy of multiple depressants
US-9387490-B2 · Jul 12, 2016 · US