Method of separating phosgene and hydrogen chloride
US-2024300817-A1 · Sep 12, 2024 · US
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by extraction
by extraction · 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 | C01B7/0731 |
| Official title | {by extraction} |
| Display label | by extraction |
| Total patents | 10 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2018 | 2 |
| 2019 | 3 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and an apparatus for separating chlorine gas from a gaseous anode outlet stream of an electrochemical reactor
US-11351497-B2 · Jun 7, 2022 · US
A method and an apparatus for separating chlorine gas from a gaseous anode outlet stream of an electrochemical reactor
US-2021077947-A1 · Mar 18, 2021 · US
Method and installation for concentrating aqueous hydrogen halide solutions
US-10494258-B2 · Dec 3, 2019 · US
Separation of a phosgene- and hydrogen chloride-comprising stream
US-10252912-B2 · Apr 9, 2019 · US
Method for purifying contaminated gaseous hydrogen chloride
US-10179735-B2 · Jan 15, 2019 · US
Separation of a phosgene- and hydrogen chloride-comprising stream
US-2018044179-A1 · Feb 15, 2018 · US
Method for purifying contaminated gaseous hydrogen chloride
US-2018016141-A1 · Jan 18, 2018 · US
Process for preparing diaryl carbonates and polycarbonates
US-9175135-B2 · Nov 3, 2015 · US
Method and installation for concentrating aqueous hydrogen halide solutions
US-2015225234-A1 · Aug 13, 2015 · US