Safe reactor for leaching of waste battery powder and capable of controlling hydrogen concentration
US-2024043958-A1 · Feb 8, 2024 · US
Leaching or washing filter cakes in the filter {handling the filter cake for purposes other than regenerating} · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D25/28 |
| Official title | Leaching or washing filter cakes in the filter {handling the filter cake for purposes other than regenerating} |
| Display label | Leaching or washing filter cakes in the filter {handling the filter cake for purposes other than regenerating} |
| Total patents | 8 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 1 |
| 2019 | 1 |
| 2023 | 2 |
| 2024 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2024043958-A1 · Feb 8, 2024 · US
US-2023398472-A1 · Dec 14, 2023 · US
US-2023023076-A1 · Jan 26, 2023 · US
US-10252191-B2 · Apr 9, 2019 · US
US-9776109-B2 · Oct 3, 2017 · US
US-2015360149-A1 · Dec 17, 2015 · US
US-2015114914-A1 · Apr 30, 2015 · US
US-2015108072-A1 · Apr 23, 2015 · US