Task specific chelating ionic liquids for removal of metal ions from aqueous solution via liquid/liquid extraction and electrochemistry
US-2020030716-A1 · Jan 30, 2020 · US
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Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C
Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01D57/00 |
| Official title | Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C |
| Display label | Separation, other than separation of solids, not fully covered by a single other group or subclass, e.g. B03C |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vacuum system for immersion photolithography
US-2019094715-A1 · Mar 28, 2019 · US
Vacuum system for immersion photolithography
US-10168624-B2 · Jan 1, 2019 · US
Vacuum system for immersion photolithography
US-2018120715-A1 · May 3, 2018 · US
Vacuum system for immersion photolithography
US-9857699-B2 · Jan 2, 2018 · US
Vacuum system for immersion photolithography
US-2017075233-A1 · Mar 16, 2017 · US
Vacuum system for immersion photolithography
US-9507270-B2 · Nov 29, 2016 · US