Huantai Intellectual Property Professional Consultants will answer your questions:
Article 69 of the "Patent Law" shall not be deemed to infringe patent rights if one of the following circumstances occurs:
(1) Patented products or products directly obtained according to patented methods are used, promised to be sold, sold or imported after being sold by the patentee or an entity or individual licensed by the patentee;
(2) The same product has been manufactured, the same method has been used, or the necessary preparations for manufacture and use have been made before the patent application date, and the manufacture and use will only continue within the original scope;
(3) ) Foreign means of transport that temporarily pass through China's territorial land, territorial waters, and airspace are installed and installed on the means of transport for its own needs in accordance with the agreement signed by the country to which it belongs and China or the international treaty to which China is a party, or in accordance with the principle of reciprocity. Use relevant patents in equipment;
(4) Use relevant patents exclusively for scientific research and experiments;
(5) To provide information required for administrative approval, manufacturing, Use or import patented drugs or patented medical devices, or manufacture or import patented drugs or patented medical devices specifically for them.
According to your description, it should constitute patent infringement.