Method for producing nickel particles, method for producing nickel sulfate, and method for producing positive electrode active material for secondary batteries
US-12577126-B2 · Mar 17, 2026 · US
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Carbonyls
Carbonyls · 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 | C01G53/02 |
| Official title | Carbonyls |
| Display label | Carbonyls |
| Total patents | 7 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 1 |
| 2022 | 1 |
| 2023 | 2 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Battery recycling by reduction and carbonylation
US-12412942-B2 · Sep 9, 2025 · US
Method of recycling nickel from waste battery material
US-2023323507-A1 · Oct 12, 2023 · US
Battery recycling by reduction and carbonylation
US-2023155202-A1 · May 18, 2023 · US
Method for producing nickel particles, method for producing nickel sulfate, and method for producing positive electrode active material for secondary batteries
US-2022048790-A1 · Feb 17, 2022 · US
Synthesis of transition-metal adamantane salts and oxide nanocomposites, and systems and methods including the salts or the nanocomposites
US-10105684-B2 · Oct 23, 2018 · US
Synthesis of transition-metal adamantane salts and oxide nanocomposites, and systems and methods including the salts or the nanocomposites
US-2017266643-A1 · Sep 21, 2017 · US