Ionic liquid solvents of perhalide type for metals and metal compounds
US-11198921-B2 · Dec 14, 2021 · US
Hydrochloric acid {, other halogenated acids or salts thereof}
Hydrochloric acid {, other halogenated acids or salts thereof} · 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 | C22B3/10 |
| Official title | Hydrochloric acid {, other halogenated acids or salts thereof} |
| Display label | Hydrochloric acid {, other halogenated acids or salts thereof} |
| Total patents | 148 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 11 |
| 2017 | 7 |
| 2018 | 8 |
| 2019 | 14 |
| 2020 | 7 |
| 2021 | 17 |
| 2022 | 7 |
| 2023 | 18 |
| 2024 | 23 |
| 2025 | 22 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Solid-state catalysts for low or moderate temperature leach applications and methods thereof
US-11124858-B2 · Sep 21, 2021 · US
Method for separating copper from nickel and cobalt
US-2021262060-A1 · Aug 26, 2021 · US
Method for separating metal components
US-11066724-B2 · Jul 20, 2021 · US
Process for recovering gold from ores
US-11041227-B2 · Jun 22, 2021 · US
Method for separating copper, and nickel and cobalt
US-2021180154-A1 · Jun 17, 2021 · US
Method for producing high-purity scandium oxide
US-10968112-B2 · Apr 6, 2021 · US
Methods of selectively recovering palladium from a palladium-containing material
US-2021047708-A1 · Feb 18, 2021 · US
Method for producing high-purity scandium oxide
US-2021032119-A1 · Feb 4, 2021 · US
Method for clean metallurgy of molybdenum
US-2020399738-A1 · Dec 24, 2020 · US
Useful method for separating light rare earth elements and heavy rare earth elements
US-10865463-B2 · Dec 15, 2020 · US
Method for preparing lead directly from lead-containing material by solid phase reaction
US-2020377971-A1 · Dec 3, 2020 · US
Method for separating rare earth element
US-2020308669-A1 · Oct 1, 2020 · US
Process of extraction of a platinum group metal or gold from organic compositions with surfactants
US-10752976-B2 · Aug 25, 2020 · US
Method for separating copper from nickel and cobalt
US-2020216929-A1 · Jul 9, 2020 · US
Process for recovering gold
US-10669608-B2 · Jun 2, 2020 · US
Ionic liquid solvents of perhalide type for metals and metal compounds
US-2019360069-A1 · Nov 28, 2019 · US
Reactor systems for recovering metals, and related methods
US-2019352742-A1 · Nov 21, 2019 · US
Use of Surfactants to Extract a Platinum Group Metal or Gold from Organic Compositions
US-2019316223-A1 · Oct 17, 2019 · US
Method for recovering a minor metal and/or rare-earth metal
US-2019292630-A1 · Sep 26, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B3/10?
- CPC C22B3/10 is the Cooperative Patent Classification code for “Hydrochloric acid {, other halogenated acids or salts thereof}.”
- How many patents are filed under CPC C22B3/10 (Hydrochloric acid {, other halogenated acids or salts thereof})?
- Our database includes 148 publications tagged with this CPC code.
- Is patent activity under CPC C22B3/10 growing?
- Publication counts under this code: 23 in 2024 vs 22 in 2025 (latest complete years).