At that time, Roman nobles showed their dignity by wearing silk clothes. Silk is more valuable than gold. At that time, because of the export of silk in the Han Dynasty, there was a large amount of income every year, which filled the national treasury. The Romans said that the stolen worms were actually the technology of making silk at that time. The Romans used stolen manufacturing technology, and after several years of improvement, they could produce silk by themselves. At that time, the Roman people could not buy silk from the Han Dynasty at that time, but could sell silk to other neighboring countries. In this way, China's silk trade suffered serious losses.
Patent technology is very important not only in modern society, but also in the world at that time. Imagine that China's four great inventions in ancient times: papermaking, gunpowder, movable type printing and compass were all patents of our country at that time. Without these superior technologies, how can we achieve the status of China as one of the four ancient civilizations? China has always been one of the most advanced countries in the world in ancient times, which shows the importance of patented technology. Therefore, the patented technology of silk manufacturing was not well protected in the Han Dynasty, but was learned by the Romans, resulting in hundreds of billions of losses to the country.
The same is true in the world today. Whether technical secrecy, technical blockade, patent fees and intellectual property protection are to protect their own interests or to obtain greater interests.