How many years has the intellectual property system been in existence? a, 100b,200c,300d,400d。

About 300 years.

The intellectual property system has a history of at least 300 years.

1, the germination of the patent system can be traced back to medieval Europe.

2. 1474, the then Republic of Venice promulgated the world's first patent law.

3./kloc-in the 0/7th century, the capitalist modern mass production created by the early industrial revolution gradually developed, and new technologies became the most valuable production factors, and the voice for protecting new technologies began to rise. 1624, the Monopoly Law implemented in Britain is considered as the first patent law in the modern sense in the world. It stipulates the subject and object of the invention patent right, the conditions for obtaining the patent right and the validity period of the patent. Some of its principles and regulations have been absorbed by the legislation of many countries and have been used to this day.

4. After Britain, America/KOOC-0/790, France/KOOC-0/79/KOOC-0/,Russia/KOOC-0/8/KOOC-0/4, Netherlands/KOOC-0/8/KOOC-0/7 and Germany/KOOC-0.