Is self-tightening bionic tool hand an invention patent?

Not an invention patent.

According to the characteristics of the patent application, determine its types: according to the provisions of China's patent law, patents can be divided into three types: invention patents, utility model patents and design patents. A. Invention as mentioned in the patent law refers to a new technical scheme proposed for a product, method or its improvement. B. The term "utility model" as mentioned in the Patent Law refers to a new technical scheme for the shape, structure or combination of products, which is suitable for practical use.

If the patent is unclear, Baidu Luxury Trademark Administrator can consult for free.