Method for the production of a collector alloy comprising precious metal or of pure silver
US-12359283-B2 · Jul 15, 2025 · US
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from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge
from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge · 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 | C22B11/023 |
| Official title | {from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge} |
| Display label | from pyrometallurgical residues, e.g. from ashes, dross, flue dust, mud, skim, slag, sludge |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pyro-metallurgical process in a rotary kiln
US-12018345-B2 · Jun 25, 2024 · US
Method for the production of a collector alloy comprising precious metal or of pure silver
US-2023078641-A1 · Mar 16, 2023 · US
Method and system for comprehensive recovery and utilization of copper-nickel sulfide ore
US-11459636-B2 · Oct 4, 2022 · US
Method for recovering pgm
US-2022259697-A1 · Aug 18, 2022 · US
Pyro-metallurgical process in a rotary kiln
US-2022178001-A1 · Jun 9, 2022 · US
Process for the recovery of precious metal from petrochemical process residues
US-10662500-B2 · May 26, 2020 · US
Method and system for comprehensive recovery and utilization of copper-nickel sulfide ore
US-2019352740-A1 · Nov 21, 2019 · US
Process for the recovery of precious metal from petrochemical process residues
US-2019226053-A1 · Jul 25, 2019 · US
Process for providing noble metal-containing mixtures for recovering noble metals
US-9169536-B2 · Oct 27, 2015 · US