What is the patent for outer packaging?

The patent for outer packaging is actually a patent for design. But if you want to apply for a patent for outer packaging, it depends on the characteristics of your packaging design. It is impossible to apply for a patent for appearance in the design of plane printed matter mainly using patterns, colors or a combination of the two.

Article 25 of the Patent Law clearly points out that the types that are not granted patent rights include "designs that are mainly used as signs of patterns, colors or a combination of the two."

If the features in your packaging design are not only patterns, colors or a combination of the two, nor are they mainly used for identification, then you can apply, otherwise, even the application may not be authorized.