Sou Hu Cai Jing·2025-08-26 15:10Core Viewpoint - Yushu Technology is facing a patent infringement lawsuit just as it begins its listing guidance, which could potentially impact its IPO process [1][3]. Group 1: Lawsuit Details - The plaintiff is Hangzhou Luweimei Daily Chemical Co., Ltd., with Zhou Jianjun holding a 90% stake and owning multiple patents, including one for an electronic dog [2]. - The lawsuit's timing is critical as Yushu Technology is preparing for its IPO, raising concerns about the potential delay or failure of the listing [3]. Group 2: Historical Context of Patent Infringement Cases - The article discusses two previous cases of companies facing patent infringement lawsuits during their IPO processes: one failed to list, while the other succeeded [3]. - Weisi New Material faced a patent infringement lawsuit in March 2023, which led to the cancellation of its IPO review just before the scheduled meeting [5]. - Weisi New Material attempted to counter the lawsuit by applying for the invalidation of the patent involved, but ultimately withdrew its IPO application in April 2024 after a year-long struggle [9]. Group 3: Successful Case Study - In contrast, Yingjixin, a chip company, successfully navigated a patent infringement lawsuit while pursuing its IPO. The involved patent was declared invalid in September 2019, allowing Yingjixin to proceed with its listing application in June 2021 [13][15]. - Yingjixin faced additional lawsuits related to trade secrets and cooperation agreements but managed to reach a settlement by paying 52 million yuan to the plaintiff, allowing it to continue with its IPO process [19][21].