Metals recovery from spent supported catalyst
US-12577125-B2 · Mar 17, 2026 · US
This page is not indexed by search engines while we improve data quality.
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 | C22B34/365 |
| Official title | {from spent catalysts} |
| Display label | from spent catalysts |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 5 |
| 2024 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for oxidative cleavage of vegetable oils containing monosaturated fatty acid triglycerides
US-12049682-B2 · Jul 30, 2024 · US
Method for selective recovery of valuable metal from waste denitrification catalyst through alkali fusion
US-12037659-B2 · Jul 16, 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
Process for recovering and regenerating a catalyst from ash
US-2023330643-A1 · Oct 19, 2023 · 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
Process for the recovery of cobalt and tungstic acid and/or its derivatives from aqueous solutions
US-2023193420-A1 · Jun 22, 2023 · US
Process for the recovery of cobalt and tungstic acid and/or its derivatives from aqueous solutions
US-11603576-B2 · Mar 14, 2023 · US
Metals recovery from spent catalyst
US-2022259696-A1 · Aug 18, 2022 · US
Syngas production and recovery of active phase metals from gasifier slag containing spent catalyst
US-2021130718-A1 · May 6, 2021 · US
Method for selective recovery of valuable metal from waste denitrification catalyst through alkali fusion
US-2021130928-A1 · May 6, 2021 · US
Method for leaching precious metals contained in waste denitrification catalyst using pressure leaching process
US-10913989-B2 · Feb 9, 2021 · US
Process for the recovery of cobalt and tungstic acid and/or its derivatives from aqueous solutions
US-2020010923-A1 · Jan 9, 2020 · US
Process for the recovery of cobalt and tungstic acid and/or its derivatives from aqueous solutions
US-10450631-B2 · Oct 22, 2019 · US
Method for producing tungsten
US-10422022-B2 · Sep 24, 2019 · US
Method for recovering vanadium and tungsten from leach solution of waste denitrification catalyst
US-10415117-B2 · Sep 17, 2019 · US
Method for leaching valuable metals contained in waste denitrification catalyst by using roasting and water leaching
US-10017839-B2 · Jul 10, 2018 · US
Method for producing tungsten
US-2018080101-A1 · Mar 22, 2018 · US
Process for the recovery of cobalt and tungstic acid and/or its derivatives from aqueous solutions
US-2017321299-A1 · Nov 9, 2017 · US