Patent No. EP4016669 (titled "Negative Electrode For Lithium Secondary Battery Having Lithiation Retardation Layer Introduced Therein, And Method For Manufacturing Same") was filed by LG Energy Solution on Jul 21, 2021. The application was issued on Sep 10, 2025.

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
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