Metals recovery from spent supported catalyst
US-12577125-B2 · Mar 17, 2026 · US
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from spent catalysts
from spent catalysts · 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 | C22B34/345 |
| Official title | {from spent catalysts} |
| Display label | from spent catalysts |
| Total patents | 12 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for the selective recovery of transition metals from organic residues
US-12392011-B2 · Aug 19, 2025 · US
Leaching agent composition and method of removing metal from catalyst material
US-2024175105-A1 · May 30, 2024 · US
Method for producing a catalyst comprising at least one group vib metal, at least one group viiib metal and a carrier based on oxide(s)
US-2024009655-A1 · Jan 11, 2024 · US
Syngas production and recovery of active phase metals from gasifier slag containing spent catalyst
US-11732204-B2 · Aug 22, 2023 · US
Metals recovery from spent supported catalyst
US-2023257280-A1 · Aug 17, 2023 · US
Metals recovery from spent catalyst
US-2023160037-A1 · May 25, 2023 · US
Metals recovery from spent catalyst
US-2022259696-A1 · Aug 18, 2022 · US
Process for the selective recovery of transition metals from organic residues
US-2021388462-A1 · Dec 16, 2021 · US
Syngas production and recovery of active phase metals from gasifier slag containing spent catalyst
US-2021130718-A1 · May 6, 2021 · US
Process for separating and recovering metals
US-9809870-B2 · Nov 7, 2017 · US
Process for the selective removal of molybdenum from a solution containing it
US-9045813-B2 · Jun 2, 2015 · US