PCT has a very high gold content. The World Intellectual Property Organization (WIPO) released global PCT patent application data in 2021. Data shows that the number of applications worldwide in 2021 is 277,500. China ranks first in the world with 69,540 cases, followed by the United States with 59,570 cases, Japan with 50,260 cases, South Korea with 20,678 cases, and Germany with 17,322 cases. It can be seen that China, the United States, and Japan took the next step before arriving in South Korea. The number of patent applications from China, the United States, and Japan accounted for 64.64% of the total applications that year. Asia accounts for the majority of all PCT applications, which is another manifestation of Asia's strong rise in the world's innovation landscape over the past 20 years.