Core Insights - Jiangsu Hanbang Technology Co., Ltd. has made significant progress in three patent infringement lawsuits against Stora Enso Sweden AB, with two patents related to "chromatography columns" and "separation medium slurry tanks" declared invalid by the National Intellectual Property Administration of China [1][2] - The third lawsuit concerning the "column filling method" resulted in a ruling by the Nanjing Intermediate People's Court that Hanbang Technology did not infringe, and the case is currently awaiting review by the Supreme People's Court [1][2] - The lawsuits highlight Hanbang Technology's strength in independent innovation within the chromatography technology sector and provide a reference for domestic high-end pharmaceutical equipment companies to overcome international patent barriers [1] Company Overview - Hanbang Technology is a high-tech enterprise focused on chromatography technology, with over 20 years of experience in the separation and purification equipment field [2] - The company has developed a core technology system termed "one heart, two cores, multiple uses," which includes chromatography column technology and system integration and application technology, covering a full product line for drug separation and purification from small to large molecules [2] - Hanbang Technology's products have been sold to over 2,000 customers domestically and internationally, emphasizing its market presence and commitment to innovation [2] Legal Context - Stora Enso previously filed lawsuits against Hanbang Technology, claiming infringement of three invention patents, with total compensation claims exceeding 16.5 million yuan [1] - The decisive outcome in the second patent infringement case led to the Supreme People's Court's final ruling to revoke the original judgment and dismiss Stora Enso's claims [1][2] - The ongoing legal proceedings reflect the competitive landscape in the chromatography technology sector and the importance of intellectual property rights for companies like Hanbang Technology [2]