Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
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Chang Chun Petrochemical Co Ltd — Electricity
Chang Chun Petrochemical Co Ltd holds 71 patents in Electricity, with representative filings summarized below.
| Metric | Value |
|---|---|
| Company | Chang Chun Petrochemical Co Ltd |
| Technology | Electricity |
| Patents in slice | 71 |
| Recent patents in slice | 14 |
| First year | 2017 |
| Last year | 2025 |
Representative patents
Notable publications linking Chang Chun Petrochemical Co Ltd to Electricity.
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Recent filings
Latest patents from Chang Chun Petrochemical Co Ltd in Electricity.
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
Surface-treated copper foil for lithium ion secondary battery, and current collector and lithium ion secondary battery
US-2025300188-A1 · Sep 25, 2025 · US
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