华帝股份：公司暂未推出超声波洗碗机产品，公司确实在前几年进行了超声波技术储备且申请了相关专利

Group 1 - The company has not yet launched an ultrasonic dishwasher product, despite having developed relevant technology and applied for patents in previous years [2] - The productization process of the ultrasonic technology has been postponed due to a comprehensive evaluation of market conditions, development needs, and costs [2]