Real-time monitoring system and method for copper-arsenic sulfidation separation in copper electrolyte purification process
US-2026055482-A1 · Feb 26, 2026 · US
Obtaining arsenic {(extraction of metal compounds by leaching in organic solutions C22B3/16; treatment or purification of solutions by adsorption on solids C22B3/24, by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42)}
Obtaining arsenic {(extraction of metal compounds by leaching in organic solutions C22B3/16; treatment or purification of solutions by adsorption on solids C22B3/24, by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42)} · 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 | C22B30/04 |
| Official title | Obtaining arsenic {(extraction of metal compounds by leaching in organic solutions C22B3/16; treatment or purification of solutions by adsorption on solids C22B3/24, by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42)} |
| Display label | Obtaining arsenic {(extraction of metal compounds by leaching in organic solutions C22B3/16; treatment or purification of solutions by adsorption on solids C22B3/24, by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42)} |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 1 |
| 2024 | 5 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Device and method for recovering arsenic and gallium
US-12319981-B2 · Jun 3, 2025 · US
Device and method for recovering arsenic and gallium
US-2024401169-A1 · Dec 5, 2024 · US
Method for preparing high-purity metallic arsenic from arsenic-containing solid waste through short flow process
US-2024336993-A1 · Oct 10, 2024 · US
Recovery method for valuable metals in copper anode slime
US-2024287644-A1 · Aug 29, 2024 · US
Purification apparatus and purification method for non-metal semiconductor material
US-2024228286-A1 · Jul 11, 2024 · US
Pyro-metallurgical process in a rotary kiln
US-12018345-B2 · Jun 25, 2024 · US
Novel peptide and method for using same
US-2023285986-A1 · Sep 14, 2023 · US
Pyro-metallurgical process in a rotary kiln
US-2022178001-A1 · Jun 9, 2022 · US
Method for preparing iron ore concentrates by recycling copper slag tailings
US-11293076-B2 · Apr 5, 2022 · US
Peptide binding to arsenic-containing mineral and use thereof
US-11254707-B2 · Feb 22, 2022 · US
Method of leaching arsenic from ore comprising copper
US-11149328-B2 · Oct 19, 2021 · US
Removal liquid and method for removing oxide of group III-V element, treatment liquid for treating compound of group III-V element, oxidation prevention liquid for preventing oxidation of group III-V element, treatment liquid for treating semiconductor substrate, and method for producing semiconductor substrate product
US-11145514-B2 · Oct 12, 2021 · US
Method for comprehensively processing noble lead
US-10982299-B2 · Apr 20, 2021 · US
Method for preparing iron ore concentrates by recycling copper slag tailings
US-2020332390-A1 · Oct 22, 2020 · US
Method for immobilizing arsenic, and arsenic-containing vitrified waste
US-10758954-B2 · Sep 1, 2020 · US
Method for comprehensively processing noble lead
US-2020208238-A1 · Jul 2, 2020 · US
Peptide binding to arsenic-containing mineral and use thereof
US-2019345201-A1 · Nov 14, 2019 · US
Device for fractional condensation of arsenic lead vapor mixture and application method thereof
US-2019284658-A1 · Sep 19, 2019 · US
Method for immobilizing arsenic, and arsenic-containing vitrified waste
US-2018354840-A1 · Dec 13, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B30/04?
- CPC C22B30/04 is the Cooperative Patent Classification code for “Obtaining arsenic {(extraction of metal compounds by leaching in organic solutions C22B3/16; treatment or purification of solutions by adsorption on solids C22B3/24, by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42)}.”
- How many patents are filed under CPC C22B30/04 (Obtaining arsenic {(extraction of metal compounds by leaching in organic solutions C22B3/16; treatment or purification of solutions by adsorption on solids C22B3/24, by liquid-liquid extraction C22B3/26, by ion-exchange extraction C22B3/42)})?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC C22B30/04 growing?
- Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).