Production method for high-purity hydrogen chloride gas
US-12312247-B2 · May 27, 2025 · US
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hydrogen chloride being extracted
hydrogen chloride being extracted · 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 | C01B7/0737 |
| Official title | {hydrogen chloride being extracted} |
| Display label | hydrogen chloride being extracted |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 1 |
| 2022 | 4 |
| 2023 | 1 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sugar mixtures and methods for production and use thereof
US-2025122467-A1 · Apr 17, 2025 · US
Method for the separation of phosphorus pentafluoride from hydrogen chloride
US-2025065259-A1 · Feb 27, 2025 · US
HCL recovery unit
US-11802046-B2 · Oct 31, 2023 · US
Production method for high-purity hydrogen chloride gas
US-2022411265-A1 · Dec 29, 2022 · US
Method of purifying waste hydrochloric acid
US-11472702-B2 · Oct 18, 2022 · US
Method and a system for producing hydrochloric acid from flue gases
US-11376546-B2 · Jul 5, 2022 · US
Hcl recovery unit
US-2022194790-A1 · Jun 23, 2022 · US
Method and a system for producing hydrochloric acid from flue gases
US-2021354076-A1 · Nov 18, 2021 · US
Process for providing hydrogen chloride for chemical reactions
US-10815193-B2 · Oct 27, 2020 · US
Process for the Production of a Saccharide Product from an Aqueous Solution
US-2020299791-A1 · Sep 24, 2020 · US
Method of purifying waste hydrochloric acid
US-2020270132-A1 · Aug 27, 2020 · US
Method and installation for concentrating aqueous hydrogen halide solutions
US-10494258-B2 · Dec 3, 2019 · US
Process of Producing Chlorine Gas
US-2019337802-A1 · Nov 7, 2019 · US
Method for processing hydrogen chloride from isocyanate preparation
US-10307727-B2 · Jun 4, 2019 · US
Process for the production of solid saccharides from an aqueous saccharide solution
US-10253381-B2 · Apr 9, 2019 · US
Process for providing hydrogen chloride for chemical reactions
US-2018186729-A1 · Jul 5, 2018 · US
Process for the production of solid saccharides from an aqueous saccharide solution
US-2017369956-A1 · Dec 28, 2017 · US
Method for processing hydrogen chloride from isocyanate preparation
US-2015343414-A1 · Dec 3, 2015 · US
Method and installation for concentrating aqueous hydrogen halide solutions
US-2015225234-A1 · Aug 13, 2015 · US