The patent law was created in order to protect intellectual properties that a person made. (It could be arts, scientific inventions, or even tangible designs)
If another person who do not held the patent try to produce the intellectual properties, that person will be tried in court and most likely be forced to compensate the patent holder.
Because of this, smart inventors who are able to produce useful things but do not have enough capital to compete in the market can be encouraged to join the competition.
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A Foehn wind is a warm, dry wind that blows down the side of a mountain
This type of wind periodically descends the leeward slopes of nearly all mountains and mountain ranges, such as the Alps in Europe, Rockies in the United States, Tianshan and Qinling in China. It's known for its rapid temperature rise that brings warmer and drier weather and which can cause droughts, (that may exacerbate forest fires) and may also rapidly melt snow (causing avalanche and floods).
b. When a country encourages entrepreneurs to invent new products
c. When the value of a dollar goes down
d. When one large company controls an entire area of products and services