European Patent Office revokes Hanwha's long-disputed passivation patent - pv magazine Global

The European Patent Office has revoked Hanwha Solutions’ 689 patent covering passivation technology used in silicon solar cells, citing a lack of inventive step. The decision follows years of patent litigation between Hanwha Q Cells and solar manufacturers including JinkoSolar, Longi and REC across Europe, the US and Australia.

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