Method for the recovery of metals from electronic waste
US-12571069-B2 · Mar 10, 2026 · US
working up of molten copper, e.g. refining
working up of molten copper, e.g. refining · 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 | C22B15/006 |
| Official title | {working up of molten copper, e.g. refining} |
| Display label | working up of molten copper, e.g. refining |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 2 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 3 |
| 2020 | 2 |
| 2023 | 4 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for production of graphene composite components having enhanced thermal conductivity
US-12312656-B1 · May 27, 2025 · US
Gas injection device
US-2023349025-A1 · Nov 2, 2023 · US
Process for reducing the content of oxygen in metallic copper
US-11753700-B2 · Sep 12, 2023 · US
Method for obtaining non-ferrous metals, in particular black and/or raw copper, from scrap containing organic matter
US-2023272507-A1 · Aug 31, 2023 · US
Method for the recovery of metals from electronic waste
US-2023250509-A1 · Aug 10, 2023 · US
A process for reducing the content of oxygen in metallic copper
US-2020190625-A1 · Jun 18, 2020 · US
Fire refining of blister copper
US-10648060-B2 · May 12, 2020 · US
Scrap melting in anode furnace processes
US-10422020-B2 · Sep 24, 2019 · US
Ultrasonic Probes with Gas Outlets for Degassing of Molten Metals
US-2019185961-A1 · Jun 20, 2019 · US
Ultrasonic probes with gas outlets for degassing of molten metals
US-10316387-B2 · Jun 11, 2019 · US
Sludge Removal Devices, Systems, and Methods
US-2018354028-A1 · Dec 13, 2018 · US
System and methods for optimizing the efficiency of smelting copper concentrates
US-10081849-B2 · Sep 25, 2018 · US
Fire refining of blister copper
US-2018142323-A1 · May 24, 2018 · US
Scrap melting in anode furnace processes
US-2018100216-A1 · Apr 12, 2018 · US
System and method for control of a copper melting furnace
US-9873926-B2 · Jan 23, 2018 · US
System and methods for optimizing the efficiency of smelting copper concentrates
US-2017226611-A1 · Aug 10, 2017 · US
System and method for control of a copper melting furnace
US-2017114430-A1 · Apr 27, 2017 · US
Ultrasonic Probes with Gas Outlets for Degassing of Molten Metals
US-2017067134-A1 · Mar 9, 2017 · US
Method and arrangement for refining copper concentrate
US-9580771-B2 · Feb 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B15/006?
- CPC C22B15/006 is the Cooperative Patent Classification code for “working up of molten copper, e.g. refining.”
- How many patents are filed under CPC C22B15/006 (working up of molten copper, e.g. refining)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C22B15/006 growing?
- Publication counts under this code: 4 in 2023 vs 1 in 2025 (latest complete years).