Not regarded as infringement of patent right.

Legal analysis: there are mainly the following acts that are not regarded as infringement of patent rights: 1, the first user's implementation. 2. The patent right is exhausted. 3. Used for scientific research and experimental purposes. 4. Temporary transit.

Legal basis: Article 62 of the Patent Law of People's Republic of China (PRC). In a patent infringement dispute, if the accused infringer has evidence to prove that the technology or design he implemented belongs to the existing technology or design, it does not constitute patent infringement.