Can I apply for a utility model patent first, and then apply for an invention patent with the same patent?

You should understand the concept of patent. The utility model patent is about; Improve the original goods on the market to make their use effect more obvious, easy to use and humanized. For example, there is a difference between the previous wired telephone and the current wireless landline, so you can apply for a utility model patent.

Invention patent; Is the invention developed by yourself or by 2.3 colleagues? First of all, your products must be developed and cut in the market, unique and unique. It has achieved great results after being put on the market. Sewage pollutes the environment and is harmful to human body. You invented the sewage purifier. Sewage enters the purifier from the left, and clean and clear spring water comes out from the right, which can be directly absorbed by the human body. This sewage purifier is an invention.

As for what you said; Whether the same patent can be applied for utility model patent before invention patent depends on what your product is! It must also be approved by the patent office. ......