article 9 of the patent law stipulates that only one patent right can be granted for the same invention-creation. However, if the same applicant applies for both a patent for utility model and an invention patent for the same invention-creation on the same day, and the patent right for utility model obtained first has not been terminated, and the applicant renounces the patent right for utility model, the invention patent right may be granted.
according to article 2 of the patent law, those who want to apply for both utility model patents and invention patents can only improve the product structure. Please add my qq296365211
invention or apply for a utility model.