Intellectual property barriers are in the name of protecting intellectual property rights on goods containing intellectual property rights, such as patented products labeled with legal trademarks, as well as copyrighted books and records, computer software, etc., to impose import restrictions or by virtue of the possession of intellectual property rights beyond the scope of the exclusive rights granted by intellectual property rights law or limited monopoly rights of the exercise of intellectual property rights unfair or unreasonable implementation of the "unfair trade". "Unfair trade". Intellectual property barriers have a certain degree of temporal territoriality coupled with its distribution of technical fields visible intellectual property barriers, although invisible but objective. As shown in the figure