Supercritical Water Oxidation to Treat Biomass and Organic Waste to Produce Chemical Products and Sodium Formate
US-2025243145-A1 · Jul 31, 2025 · US
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Preparation of hydrogen chloride from the elements
Preparation of hydrogen chloride from the elements · 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 | C01B7/012 |
| Official title | {Preparation of hydrogen chloride from the elements} |
| Display label | Preparation of hydrogen chloride from the elements |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Systems and methods for removal and sequestration of acidity from surface seawater
US-2025171915-A1 · May 29, 2025 · US
Systems and methods for removal and sequestration of acidity from surface seawater
US-12227861-B2 · Feb 18, 2025 · US
Systems and methods for removal and sequestration of acidity from surface seawater
US-2024360571-A1 · Oct 31, 2024 · US
Systems and methods for removal and sequestration of acidity from surface seawater
US-2024254020-A1 · Aug 1, 2024 · US
Systems and methods for removal and sequestration of acidity from surface seawater
US-11939247-B2 · Mar 26, 2024 · US
Alkali-based removal of chemical moieties from gas streams with chemical co-generation
US-2023226487-A1 · Jul 20, 2023 · US
Systems and methods for removal and sequestration of acidity from surface seawater
US-2023130444-A1 · Apr 27, 2023 · US
Alkali-based removal of chemical moieties from gas streams with chemical co-generation
US-11559766-B2 · Jan 24, 2023 · US
Alkali-based removal of chemical moieties from gas streams with chemical co-generation
US-2022105463-A1 · Apr 7, 2022 · US
Alkali-based removal of chemical moieties from gas streams with chemical co-generation
US-11229879-B2 · Jan 25, 2022 · US
Alkali-based removal of chemical moieties from gas streams with chemical co-generation
US-2021001270-A1 · Jan 7, 2021 · US
Type of burning device for producing gas mixtures
US-10413879-B2 · Sep 17, 2019 · US
Method for producing hydrogen chloride
US-2018354789-A1 · Dec 13, 2018 · US
New type of burning device for producing gas mixtures
US-2018280919-A1 · Oct 4, 2018 · US
Method and system for the integral chlorine dioxide production with relatively independent sodium chlorate electrolytic production and chlorine dioxide production
US-9776163-B1 · Oct 3, 2017 · US
Apparatus for HCL synthesis with steam raising
US-9481574-B2 · Nov 1, 2016 · US