Venice.
In 1474, Venice promulgated the world's first patent law.
Although this patent law has some characteristics and factors of modern patent law, it is quite simple and rough, and has a strong color of feudal privileges, and the protection efficiency is very low.
The patent system with truly modern characteristics has been gradually formed, developed and improved since the 17th century with the continuous development of the capitalist economy and the firm establishment of the capitalist mode of production.