Method for recovering metal from waste printed circuit board and a cell thereof
US-12448695-B2 · Oct 21, 2025 · US
characterised by the organic bath constituents used · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C25D3/52 |
| Official title | characterised by the organic bath constituents used |
| Display label | characterised by the organic bath constituents used |
| Total patents | 28 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 5 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 2 |
| 2025 | 4 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12448695-B2 · Oct 21, 2025 · US
US-12442099-B2 · Oct 14, 2025 · US
US-2025305175-A1 · Oct 2, 2025 · US
US-2025215598-A1 · Jul 3, 2025 · US
US-2023416936-A1 · Dec 28, 2023 · US
US-2023407507-A1 · Dec 21, 2023 · US
US-11512405-B2 · Nov 29, 2022 · US
US-11414761-B2 · Aug 16, 2022 · US
US-2022112619-A1 · Apr 14, 2022 · US
US-2021172082-A1 · Jun 10, 2021 · US
US-2021087702-A1 · Mar 25, 2021 · US
US-10845330-B2 · Nov 24, 2020 · US
US-2020340132-A1 · Oct 29, 2020 · US
US-10648096-B2 · May 12, 2020 · US
US-10508349-B2 · Dec 17, 2019 · US
US-10358700-B2 · Jul 23, 2019 · US
US-2017370014-A1 · Dec 28, 2017 · US
US-9752243-B2 · Sep 5, 2017 · US
US-2017248542-A1 · Aug 31, 2017 · US
US-9681828-B2 · Jun 20, 2017 · US
Answers are generated from the same data shown on this page.