碧水源(300070.SZ)：核心业务为膜技术研发与应用，拥有超600项专利

Core Viewpoint - The company, Beishuiyuan, is a high-tech enterprise listed on the ChiNext board, focusing on membrane technology research and application, with over 600 patents [1] Company Overview - Beishuiyuan is recognized as a high-tech enterprise on the ChiNext board [1] - The core business of the company revolves around the research and application of membrane technology [1] - The company holds more than 600 patents, indicating a strong emphasis on innovation and intellectual property [1]