Method of selectively removing aluminum from waste electrode and a method of removing metal components from the waste electrode using the method
US-12586834-B2 · Mar 24, 2026 · US
Halogenated acids or salts thereof
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 | C22B23/0423 |
| Official title | {Halogenated acids or salts thereof} |
| Display label | Halogenated acids or salts thereof |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 8 |
| 2024 | 14 |
| 2025 | 7 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of leaching nickel from oxidized ore, method of manufacturing nickel sulfate, and nickel-leaching agent
US-2026062769-A1 · Mar 5, 2026 · US
Method of leaching nickel from oxidized ore, method of manufacturing nickel sulfate, and nickel-leaching agent
US-2026062315-A1 · Mar 5, 2026 · US
Method and electrochemical system for recycling spent lithium-ion battery
US-12553142-B2 · Feb 17, 2026 · US
Method for recovering transition metals from lithium secondary batteries
US-2026042132-A1 · Feb 12, 2026 · US
Method for reducing waste by recovering transition metals from lithium secondary battery
US-12451533-B2 · Oct 21, 2025 · US
Cyclone high-speed electrolyzer using high-speed turbulence, method for recovering valuable metals using the same, and valuable metals recovered therefrom
US-2025290214-A1 · Sep 18, 2025 · US
Method and apparatus for recycling lithium-ion batteries
US-2025273760-A1 · Aug 28, 2025 · US
Co2 assisted regenerable solvent aided separation of heavy rare earth elements
US-2025197237-A1 · Jun 19, 2025 · US
Method and apparatus for recycling lithium-ion batteries
US-12322769-B2 · Jun 3, 2025 · US
Metal leaching process and apparatus
US-2025115975-A1 · Apr 10, 2025 · US
A method for iron and copper removal from solution using metallic reagents
US-2025011898-A1 · Jan 9, 2025 · US
Charge material for recycled lithium-ion batteries
US-2024413421-A1 · Dec 12, 2024 · US
Selective leaching
US-2024336992-A1 · Oct 10, 2024 · US
Charge material for recycled lithium-ion batteries
US-12074302-B2 · Aug 27, 2024 · US
Method and electrochemical system for recycling spent lithium-ion battery
US-2024279831-A1 · Aug 22, 2024 · US
Method and apparatus for recycling lithium-ion batteries
US-12046725-B2 · Jul 23, 2024 · US
Production method for cobalt sulfate
US-2024228320-A1 · Jul 11, 2024 · US
Method And Apparatus For Recycling Lithium-Ion Batteries
US-2024204279-A1 · Jun 20, 2024 · US
Process for recovering metals from recycled rechargeable batteries
US-12000014-B2 · Jun 4, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B23/0423?
- CPC C22B23/0423 is the Cooperative Patent Classification code for “Halogenated acids or salts thereof.”
- How many patents are filed under CPC C22B23/0423 (Halogenated acids or salts thereof)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC C22B23/0423 growing?
- Publication counts under this code: 14 in 2024 vs 7 in 2025 (latest complete years).