Different countries in the world have different provisions on the duration of patent rights, but there is no such provision.

No, there are geographical restrictions on patent protection. Patents filed in China are only protected in China.

As a part of intellectual property, patent is an intangible property with characteristics different from other properties.

exclusiveness

That is exclusivity. It means that within a certain period of time (within the validity period of the patent right) and within a certain area (within the legal jurisdiction), no unit or individual may exploit its patent without the permission of the patentee, that is, it shall not manufacture, use, promise to sell, sell or import its patented products for the purpose of production and operation, or use its patented methods and manufacture, use, promise to sell, sell or import its patented products, otherwise it will be an infringement.

regional

Regionality means that the patent right is a right with geographical restrictions and is only valid within the legal jurisdiction. Except in some cases, according to the international convention for the protection of intellectual property rights, if an individual country recognizes the validity of the patent right approved by another country, the technological invention will be granted the patent right applied for by that country, and it is only valid within the scope of the patent-granting country, but it is not legally binding on other countries, and other countries do not undertake any protection obligations. However, the same invention can be patented in two or more countries at the same time, and its invention can be protected by law in all the applicant countries after it is approved.

in time

Timeliness means that a patent is only valid within the time limit prescribed by law. After the expiration of the effective protection period of the patent right, the patent right enjoyed by the patentee will be automatically lost and generally cannot be renewed. With the end of the protection period, the invention becomes the public wealth of the society, and others can freely use the invention to create products. The term of patent protection prescribed by law shall be stipulated by the patent law of the relevant countries or relevant international conventions. The patent laws of all countries in the world have different provisions on the duration of patent protection. Article 33 (Intellectual Property Agreement) stipulates that "the term of protection shall not be less than the end of the twentieth year from the date of filing the application".