Provisions on the duration of patent protection: According to Article 42 of China's Patent Law, the duration of protection of invention patent right is 20 years, that of utility model patent right is 10 year, and that of design patent right is 15 year, all of which are counted from the date when the patentee applies.
Legal objectivity:
Applying for a patent means that the protection period of an invention is limited. According to China's patent law, inventions include three categories, namely, inventions, utility models and designs; The following is a detailed overview of their protection periods: the protection period of invention patents is 20 years, and the protection period of utility model patents and design patents is 10 years. This shows that once an invention is patented, it can only be protected by law for 20 years at most. After this period of time, your inventions and technological innovations will be placed in the public domain and contributed to society for free. After applying for a patent, it means that your invention will be made public and anyone can easily obtain your technology. Although it can be protected by law, this protection is strictly limited by legal provisions. In China, a vast country, there are bound to be great obstacles in protecting patent rights nationwide.