How to judge the infringement of mobile phone patent?

According to the laws of our country, no one may infringe the legitimate rights of the patentee without the permission of the patentee. Characteristics of mobile phone patent infringement Patent infringement: 1, and the infringement is a valid patent; 2. The infringer has committed an infringement; 3, for the purpose of production and operation; 4. The infringer violates the law. How to judge the infringement of mobile phone patent? Circumstances that can be identified as infringement: 1, the act of manufacturing patented products of inventions, utility models and designs; 2. The act of using patented products of inventions and utility models; 3. Promising to sell patented products of inventions and utility models; 4. Selling patented products of inventions, utility models or designs; 5. The act of importing patented products of inventions, utility models and designs; 6. Use patented methods and use, promise to sell, sell and import products directly obtained by patented methods; 7. The act of counterfeiting other people's patents.