How to correctly understand the relationship between inventions, utility models and designs?

⑴*** Similar points: ① They are all the fruits of human intellectual labor; ② They are all inventions and creations referred to in my country’s patent law and are protected objects by the patent law; ③ They all need to be reviewed and approved by the patent authority To become a patent, obtain patent rights. ⑵Contact: ①In some cases, invention and utility model can be converted into each other; ②In some cases, utility model and design may exist in the same object; ③Invention, utility model and design may not be the same *Store in the same object. ⑶Differences: ①Inventions are the main objects of protection by patent law; ②Inventions and utility models are both new technical solutions, while appearance designs are new designs; ③The technical difficulty of inventions is significantly higher than that of utility models. Hope this is the answer you want