Hello, according to Item 5 of Article 62 of the Patent Law of People's Republic of China (PRC), the exclusive use of related patents for scientific research and experiments is not regarded as patent infringement. It refers to the demonstration use of related patents or the inspection and verification of their technical and economic effects in order to explore new inventions and creations on the basis of existing patented technologies under laboratory conditions. In addition, any use of existing valid patents or patented methods for commercial purposes constitutes patent infringement.
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