intellectual property is the most reasonable monopoly. With a trademark, other competitors cannot use the same trademark name. With patents, you can form a monopoly in a certain field, and the same technology with patents is the king. However, from the past experience, we usually find that some brands have the same brand name, but they have lived in peace for many years. For example, the trademark "Great Wall", which we are familiar with, has wine, cars and lubricants, but it seems that they are not a company

and are divided into 45 categories. In principle, as long as this category does not conflict with other categories, it means that this category does not have the same trademark. In other words, in principle, 45 categories can have 45 "Great Walls" at the same time. Of course, some enterprises or commodities involve multiple categories.

Secondly, brand names are inherent words, such as "Great Wall", "Yangtze River" and "Yellow River". We already know the general meaning of this brand without publicity. Often such a name will be used by many people and everyone likes it. So there is the example of the "Great Wall" above.