The patentee enjoys the exclusive right to use, sell and import his invention and creation. No other unit or individual may, without permission, manufacture, use, promise to sell, sell or import its patented products or use its patented methods, or use, promise to sell, sell or import products directly obtained according to its patented methods for production and business purposes.
The invention-creation patent right granted by law to the patentee is only valid within the time specified by law. After the expiration of the time limit, the patentee does not enjoy exclusive rights to it, that is, any unit or individual can use it free of charge. The time limit stipulated in China's patent law is 20 years for invention patents, 10 years for utility model patents and design patents.
The patent right granted by a country according to its own patent law is only valid within its jurisdiction and is not binding on other countries. Foreign countries do not undertake the obligation to protect their patent rights. If a person obtains a patent right in China, he only enjoys a patent right in China, that is, if someone else implements the invention in China without his permission, it is an infringement, and if someone else manufactures, uses or sells the invention in another country, it is not an infringement.