Method for recovering active metal of lithium secondary battery
US-2023369670-A1 · Nov 16, 2023 · US
Obtaining nickel or cobalt
Obtaining nickel or cobalt · 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 | C22B23/00 |
| Official title | Obtaining nickel or cobalt |
| Display label | Obtaining nickel or cobalt |
| Total patents | 116 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 7 |
| 2017 | 5 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 6 |
| 2021 | 9 |
| 2022 | 7 |
| 2023 | 25 |
| 2024 | 16 |
| 2025 | 19 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing mixed metal salt
US-2023312369-A1 · Oct 5, 2023 · US
Method for recovering lithium from lithium ion battery scrap
US-2023304130-A1 · Sep 28, 2023 · US
Active material recovery method using positive electrode scrap
US-2023275278-A1 · Aug 31, 2023 · US
Method for recovering lithium from lithium ion battery scrap
US-11702719-B2 · Jul 18, 2023 · US
Method for recovering rare metal salt
US-2023202854-A1 · Jun 29, 2023 · US
Process for the recovery of lithium and other metals from waste lithium ion batteries
US-2022352570-A1 · Nov 3, 2022 · US
Method and system for comprehensive recovery and utilization of copper-nickel sulfide ore
US-11459636-B2 · Oct 4, 2022 · US
Lithium recovery method
US-11434545-B2 · Sep 6, 2022 · US
Method for recovering valuable metals from spent lithium-ion-batterie
US-2022263147-A1 · Aug 18, 2022 · US
Process for the recovery of lithium and other metals from waste lithium ion batteries
US-2022251681-A1 · Aug 11, 2022 · US
Processing method of positive electrode active substance waste of lithium ion secondary battery
US-2022045375-A1 · Feb 10, 2022 · US
Battery recycling with electrolysis of the leach to remove copper impurities
US-2022013820-A1 · Jan 13, 2022 · US
Reagent compositions for metal solvent extraction and methods of preparation and use thereof
US-2021381080-A1 · Dec 9, 2021 · US
Recovery of critical elements from end-of-life lithium ion batteries with supported membrane solvent extraction
US-2021376400-A1 · Dec 2, 2021 · US
Method for producing lithium carbonate
US-2021316998-A1 · Oct 14, 2021 · US
Method for separating copper from nickel and cobalt
US-2021262060-A1 · Aug 26, 2021 · US
Method for separating copper, and nickel and cobalt
US-2021180154-A1 · Jun 17, 2021 · US
Process for the recovery of lithium and transition metal using heat
US-2021147960-A1 · May 20, 2021 · US
Lithium recovery method
US-2021108285-A1 · Apr 15, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B23/00?
- CPC C22B23/00 is the Cooperative Patent Classification code for “Obtaining nickel or cobalt.”
- How many patents are filed under CPC C22B23/00 (Obtaining nickel or cobalt)?
- Our database includes 116 publications tagged with this CPC code.
- Is patent activity under CPC C22B23/00 growing?
- Publication counts under this code: 16 in 2024 vs 19 in 2025 (latest complete years).