Legal analysis: The obligations of the patentee are as follows: 1. Pay the annual patent fee as required; Second, implement patented technology according to law; 3. Do not abuse the patent right; 4. Reward the inventor or designer and pay remuneration. According to Article 43 of the Patent Law, the patentee shall pay the annual fee from the year when the patent right is granted.
Legal basis: People's Republic of China (PRC) Patent Law.
Article 10 The right to apply for a patent and the patent right may be transferred.
Article 43 The patentee shall pay the annual fee from the year when the patent right is granted.