Improper increase of intellectual property content: the alienation of patent function is reflected in the gradual expansion of traditional intellectual property rights such as patents, trademarks and copyrights, such as layout design of integrated circuits, computer software and new plant varieties.
The protection period of intellectual property rights has been extended: under normal circumstances, the protection period of a patent is only 15 to 20 years, but in recent years, the protection period of patents has been extended in some fields in some developed countries, such as medicine and computer software.