The following situations do not constitute patent infringement: 1. Products can be obtained directly based on the nature of the patented product or related methods; 2. Manufacturing of related products has begun before the patent is issued; 3. Others stipulated by law does not constitute patent infringement. Article 75 of the "Patent Law of the People's Republic of China" that came into effect on June 1, 2021 will not be regarded as infringement of patent rights if any of the following circumstances occurs: (1) Patented products or products directly obtained according to patented methods After the product is sold by the patentee or an entity or individual licensed by it, the product is used, promised to be sold, sold, or imported; (2) The same product has been manufactured, the same method has been used, or the manufacturing process has been completed before the patent application date. , necessary preparations for use, and will only continue to be manufactured and used within the original scope; (3) Foreign transportation vehicles that temporarily pass through China’s territorial land, territorial waters, and airspace shall be transported in accordance with the agreement signed between the country to which they belong and China or the *** International treaties to which the transport vehicle is a party, or in accordance with the principle of reciprocity, the use of relevant patents in the devices and equipment of the means of transport for their own needs; (4) The use of relevant patents exclusively for scientific research and experiments; (5) The use of relevant patents for administrative examination and approval Required information for manufacturing, using, and importing patented drugs or patented medical devices, as well as manufacturing, importing patented drugs, or patented medical devices specifically for them.