What is the limitation of patent right?

The so-called temporality means that the patentee's exclusive right to his invention and creation is only valid within the time stipulated by law. After the expiration of the time limit, the patentee no longer enjoys the exclusive right to manufacture, use, sell and import his invention. In this way, inventions originally protected by law become public wealth of society, and any unit or individual can use them free of charge.

For the duration of the patent right, the patent laws of all countries clearly stipulate that the protection period of the invention patent is generally from the date of application 10 to 20 years; The term of utility model and design patent is 5- 10 years in most countries. According to China's current patent law, the protection periods of invention patents, utility model patents and design patents are 20 years, 10 years and 10 years respectively from the date of filing.