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 is involved in a legal dispute with First Solar over patent infringement related to the TOPCon technology, specifically patent US913074B2, which First Solar claims JinkoSolar has violated [1]. Group 1: Legal Dispute Details - First Solar filed a lawsuit against JinkoSolar and its affiliates on February 25, alleging infringement of the TOPCon patent [1]. - JinkoSolar has confirmed that it is well-prepared to challenge the validity of the patent, utilizing 27 historical documents and expert testimonies to argue for its invalidation [5]. - The patent in question was acquired by First Solar through the purchase of TetraSun in 2013 and is set to expire in November 2031 [1]. Group 2: Patent Statistics and Industry Context - First Solar holds a total of 624 patents in the U.S., with 367 of them, or 58.81%, having expired, leaving 225 active patents, which account for 36.06% [5]. - The solar industry has seen rapid expansion of TOPCon technology, but there are concerns regarding weak intellectual property protection within the sector [6]. - The current market environment is characterized by a downturn, prompting leading companies to focus on technology upgrades and intellectual property protection [6].