/kloc-in the third century, a charter appeared in Britain, and the king of England issued an imperial edict granting new inventions or newly introduced British technologies a monopoly right for a certain period of time. That is, in 1236, King Henry III of England granted a Bordeaux citizen the monopoly right to manufacture fabrics of various colors. In fact, this is a feudal privilege, not a patent in the modern sense.
1474, Venice city-state and Senate promulgated the world's first patent law with modern characteristics. On February 20th, 476, the first recorded patent was approved. Venice became the first country to establish a patent system.
1624, Britain promulgated the Monopoly Law, the first patent law with modern significance in the world. It is the beginning of modern patent law, which has a great influence on the patent laws of other countries in the future. J Kohler, a German jurist, once called it "Magna Carta of Inventor's Rights".