Process for reducing the concentration of arsenic in an aqueous solution comprising a fluoroacid
US-11639302-B2 · May 2, 2023 · US
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Halides (C01G28/001 takes precedence)
Halides (C01G28/001 takes precedence) · 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 | C01G28/007 |
| Official title | {Halides (C01G28/001 takes precedence)} |
| Display label | Halides (C01G28/001 takes precedence) |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2019 | 2 |
| 2020 | 1 |
| 2022 | 1 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High purity tungsten pentachloride and production method thereof
US-11427479-B2 · Aug 30, 2022 · US
Nonaqueous electrolytic solution for electric double layer capacitors
US-10593488-B2 · Mar 17, 2020 · US
Process for Reducing the Concentration of Arsenic in an Aqueous Solution Comprising a Fluoroacid
US-2019270656-A1 · Sep 5, 2019 · US
High purity tungsten pentachloride and production method thereof
US-2019233301-A1 · Aug 1, 2019 · US
Nonaqueous electrolytic solution for electric double layer capacitors
US-2017330700-A1 · Nov 16, 2017 · US
Method for treating lead anode slime
US-9650695-B2 · May 16, 2017 · US
Method for treating lead anode slime
US-2016281193-A1 · Sep 29, 2016 · US