PatentsChina
China’s CNIPA Invalidates First Solar Subsidiary Tetrasun’s Key TOPCon Patent in Win for JinkoSolar
China’s National Intellectual Property Administration (CNIPA) has invalidated a crucial patent held by Tetrasun, a subsidiary of First Solar, related to advanced TOPCon solar cell technology. The ruling, based on lack of novelty and inventiveness, removes Tetrasun’s ability to block Chinese manufacturers from using th…
Monday, May 25, 2026