Utility model patent "Utility model"in Chinese Patent Law means any new technical solution relating to the shape,the structure,or their combination,of a product,which is fit for practical use. ·Z1.N0.2002200001.10r2002900001.1 〔3 2023/12/12 Tongji-Taolue Zhang 17 Utility model patent • "Utility model" in Chinese Patent Law means any new technical solution relating to the shape, the structure, or their combination, of a product, which is fit for practical use. • Zl.No. 2002200001.1 or 2002900001.1 2023/12/12 Tongji - Taolue Zhang 17