Subject of engineering patent

1, the patent right is regional, and the patent of a country can only be protected in that country, so the American patent is useless in China and cannot be protected by the China government.

2. Patent protection is time-sensitive. According to the patent law of our country, the invention patent is only protected for 20 years, and the appearance of utility model is only protected for 10 years. The patent right should have passed for some time now, so its value will definitely decline.

The above two points are enough for him to reduce the price. From an exclusive point of view, he seems to have no reason to reduce the price.