Production method for high-purity hydrogen chloride gas
US-12312247-B2 · May 27, 2025 · US
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Organic compounds
Organic compounds · 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 | C01B2210/0068 |
| Official title | Organic compounds |
| Display label | Organic compounds |
| Total patents | 6 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for pretreating and recovering a rare gas from a gas contaminant stream exiting an etch chamber
US-11603313-B2 · Mar 14, 2023 · US
Production method for high-purity hydrogen chloride gas
US-2022411265-A1 · Dec 29, 2022 · US
Purification systems and methods for carbon dioxide production
US-2020140280-A1 · May 7, 2020 · US
Method for purification of a CO2 stream
US-10508079-B2 · Dec 17, 2019 · US
Method for purification of a co2 stream
US-2018258035-A1 · Sep 13, 2018 · US