How to investigate and deal with the infringement of appearance patent

how to investigate and deal with the infringement of design patents? China's patents can be divided into three categories: invention patents, utility model patents and design patents, and design patents are often infringed. How to investigate and deal with the infringement of design patent 1. Determine the protection scope of design patent right. According to the second paragraph of Article 56 of the Patent Law, the scope of protection shall be subject to the patented product of design shown in the picture or photograph. 2. Determine whether the patented product of design and the infringing product belong to the same or similar products. It is usually based on the function and use of the product, and at the same time, it refers to the classification of goods in the International Classification of Designs (namely the Locarno Treaty). If the patented product of design and the product accused of infringement are the same in function and use, it can be determined that they are the same or similar goods. If they are not the same in function and use, it can be concluded that they are neither the same commodity nor similar commodities, so that patent infringement is not established. How to investigate and deal with appearance patent infringement?