Method for recovering valuable metal
US-11807914-B2 · Nov 7, 2023 · US
by dry processes
by dry processes · 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 | C22B23/02 |
| Official title | by dry processes |
| Display label | by dry processes |
| Total patents | 122 |
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 | 8 |
| 2016 | 1 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 4 |
| 2021 | 4 |
| 2022 | 12 |
| 2023 | 25 |
| 2024 | 23 |
| 2025 | 18 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for preparing lithium nickle cobalt manganese oxide by reverse positioning of power battery and use thereof
US-11802055-B1 · Oct 31, 2023 · US
Alloy powder, method for manufacturing same, and method for recovering valuable metal
US-2023256507-A1 · Aug 17, 2023 · US
Method for recovering valuable metal
US-2023257851-A1 · Aug 17, 2023 · US
Method for producing battery-grade nickel sulfate by using laterite nickel ore
US-2023227326-A1 · Jul 20, 2023 · US
Method for recovering valuable metal
US-2023212713-A1 · Jul 6, 2023 · US
Recovery of nickel and cobalt from Li-ion batteries or their waste
US-2022403483-A1 · Dec 22, 2022 · US
Process for the recovery of lithium and other metals from waste lithium ion batteries
US-2022352570-A1 · Nov 3, 2022 · US
Method for smelting oxide ore
US-11479832-B2 · Oct 25, 2022 · US
Active Material Reuse Method Using Cathode Scrap
US-2022336879-A1 · Oct 20, 2022 · US
Method for Reusing Active Material by Using Positive Electrode Scrap
US-2022336878-A1 · Oct 20, 2022 · US
Comprehensive recovery method of pyrolysis polymetallic product from waste integrated circuit board
US-11447846-B2 · Sep 20, 2022 · US
Comprehensive Recovery Method Of Pyrolysis Polymetallic Product From Waste Integrated Circuit Board
US-2022205063-A1 · Jun 30, 2022 · US
Pyro-metallurgical process in a rotary kiln
US-2022178001-A1 · Jun 9, 2022 · US
Waste lithium-ion battery roasting apparatus
US-2022173447-A1 · Jun 2, 2022 · US
Bio-reduction of metal ores integrated with biomass pyrolysis
US-2022098700-A1 · Mar 31, 2022 · US
Bio-reduction of metal ores integrated with biomass pyrolysis
US-2022098685-A1 · Mar 31, 2022 · US
Bio-reduction of metal ores integrated with biomass pyrolysis
US-2022098701-A1 · Mar 31, 2022 · US
Method for recovering valuable metals from waste lithium ion batteries
US-2021328283-A1 · Oct 21, 2021 · US
Method of recovery of nickel and cobalt
US-2021269894-A1 · Sep 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C22B23/02?
- CPC C22B23/02 is the Cooperative Patent Classification code for “by dry processes.”
- How many patents are filed under CPC C22B23/02 (by dry processes)?
- Our database includes 122 publications tagged with this CPC code.
- Is patent activity under CPC C22B23/02 growing?
- Publication counts under this code: 23 in 2024 vs 18 in 2025 (latest complete years).