Do you know the difference between invention patent and utility model patent?

The main differences between utility model patents and invention patents are: (1) The former does not need substantive examination, and it is easy to obtain patent authorization quickly, but it needs an official evaluation report when it is used in litigation; (2) The longest protection period of the former is 10 year, while that of the latter is 20 years; (3) The former can only protect products, but not methods; (4) The former application fee is cheaper than the latter; (5) Due to point (1), people and the government generally believe that invention patents contain high gold content, and government subsidized resources tend to grant invention patents.