Legal analysis: from the date of application, the annual fee will be paid from the date of patent authorization. The revised patent law will be implemented on June, 20265438 1, which is the fourth revision of the current patent law in China. The protection period of the modified design patent will be extended from 10 to 15.
Legal basis: Article 42 of the Patent Law has a term of 20 years for invention patents and 10 years for utility model patents and design patents, counting from the date of filing.