According to the relevant provisions of the Patent Law and its detailed rules for implementation, the main manifestations of patent infringement are: 1. Implementing a patent without the permission of the patentee; 2. Fraudulent use of other people's patents; 3. passing off non-patented products as patented products; 4. Deprive the inventor or designer of the right to apply for a patent for non-service invention-creation and other related legitimate rights and interests.