The patentee shall pay the annual fee on time every year. Failure to pay the annual fee as required will lead to the early termination of the patent right;
Where the patentee transfers the patent right, it shall conclude a written transfer contract and register it with China National Intellectual Property Administration, and the transfer of the patent right shall take effect from the date of registration;
Where the patentee or other obligee licenses others to exploit his patent, he shall conclude a written license contract and file it in China National Intellectual Property Administration within 3 months from the date of entry into force;
The patentee has the right to indicate the patent mark and patent number on his patented product or the packaging of the product;
Where the patentee or other obligee pledges his patent right, he shall conclude a written contract and register the pledge with China National Intellectual Property Administration. The pledge contract shall take effect from the date of registration.