被美国公司起诉侵犯专利5个月后 光伏龙头晶科能源提出涉案专利无效申请

Core Viewpoint - JinkoSolar has filed a petition for patent invalidation against First Solar's patent US913074B2, which relates to TOPCon technology, following a lawsuit from First Solar alleging patent infringement [1][2]. Group 1: Patent Dispute Details - First Solar's lawsuit against JinkoSolar was initiated on February 25, claiming infringement of the TOPCon patent acquired through the purchase of TetraSun in 2013 [2]. - The patent US913074B2, which pertains to a high-efficiency solar cell structure and manufacturing method, was filed in April 2010 and granted in September 2015, with an expiration date expected in November 2031 [2]. - JinkoSolar has prepared extensively for the invalidation application, utilizing 27 historical documents to argue for the patent's revocation [6]. Group 2: Industry Context and Implications - The solar industry has seen rapid expansion in TOPCon technology, but issues with intellectual property protection have contributed to market chaos [8]. - JinkoSolar has also engaged in patent litigation against other companies, including WAAN, indicating a broader trend of legal disputes within the industry [7]. - The current market environment is characterized by a focus on technological upgrades and cautious expansion due to reduced investment returns and limited efficiency gains from new technologies [8].