Both parties have appearance patents. How to judge infringement?

Legal analysis: The principles and methods to judge the infringement of appearance patent are generally based on the function and use of the product, and the principle of universal coverage is the most basic principle to judge patent infringement.

Legal basis: Article 60 of the Patent Law of People's Republic of China (PRC), if a patent is exploited without the permission of the patentee, that is, the patent right is infringed and a dispute arises, it shall be settled by the parties through consultation; Unwilling to negotiate or failing to do so, the patentee or interested party may bring a suit in a people's court or request the administrative department for patent affairs to handle it.