Patent right infringement refers to exclusivity. Unless otherwise provided by law, no unit or individual may use the patented invention without the consent of the patentee. However, in order to prevent patentees from abusing their rights and to safeguard the overall interests of the country and society, restrictive provisions have been made on the rights of patentees. According to the provisions of the Patent Law, the patentee has the exclusive right to exploit his inventions and creations, and other entities or individuals have the right to exploit their inventions and creations with the consent of the patentee. This is the principle. However, in order to maintain the technology market, promote the development of science and technology, and protect the interests of the country, Article 62 of the Patent Law stipulates that the following acts shall not be regarded as infringement of patent rights: 1. The patentee manufactures or uses patent rights After a patented product manufactured with a license is sold, the use or sale of the product no longer requires the permission of the patentee. This is an important restriction on patent rights and is called the "patent exhaustion principle." It should be noted that this principle only applies to patented products that are legally placed on the market. The products legally put on the market include: first, patented products put on the market by the patentee; second, patented products put on the market by the licensee; third, patented products put on the market by the prior user; fourth, compulsory products put on the market. Benefits from the license go into the patented products put on the market; fifth, the patented products put into the market by the licensees licensed by the national plan, etc. If you knowingly use or sell a patented product that has been illegally put on the market, it is an act of patent infringement. 2. The prior user's use of Article 62 Paragraph 3 of the Patent Law stipulates that the same product has been manufactured before the filing date, using the same method or has been manufactured, used and prepared, and only within the original scope. Continuing to manufacture and use within the period will not be deemed as infringement. This is the first-to-use principle. 3. Use or sell in good faith a patented product that has been manufactured and sold without the permission of the patentee. Paragraph 2 of Article 62 of my country’s Patent Law stipulates that the use or sale of a patented product that is not known to be manufactured and sold without the permission of the patentee products are not considered infringement. Because any distributor has no obligation to find out how the patented product entered the circulation before using or selling it. This restriction on the rights of patentees is mainly to facilitate people's production and life needs. 4. The use of patented products in the operation of foreign means of transport stipulates in Article 62, Item 4 of my country's Patent Law, that foreign means of transport that temporarily pass through China's territory, territorial sea, and airspace shall, in accordance with the agreement or *** agreement signed with China by the country to which they belong, The use of relevant patents in the devices and equipment of a means of transportation for its own needs shall not be deemed as infringement. This is also a restriction on patentees stipulated in the Paris Convention for the Protection of Industrial Property. 5. Use for non-commercial purposes Article 62 of the Patent Law stipulates that the use of relevant patents exclusively for scientific research and experiments is not considered infringement because it does not belong to commercial activities. The use of patents for non-commercial purposes is nothing more than the development of sub-science and technology, education and training of talents, and is conducive to encouraging scientific research and experiments. It also includes use for educational purposes and use of patents for personal or family purposes.