Does the purchase of patented products constitute infringement

Legal analysis: whether buying a product that infringes the patent right is also an infringement depends on whether the buyer knows that the product is an infringement product.

Legal basis: People's Republic of China (PRC) Patent Law.

Article 70 Anyone who uses, promises to sell or sells an infringing patented product for the purpose of production and operation without knowing that it was manufactured and sold without the permission of the patentee shall not be liable for compensation if he can prove the legal source of the product.

Article 62 Any of the following circumstances shall not be regarded as infringement of the patent right: after the patented product manufactured by the patentee or licensed by the patentee is sold, the patented product is used or sold; Two, the use or sale of products that are not known to be patented and manufactured and sold without the permission of the patentee; 3. Having manufactured the same product, used the same method or made necessary preparations for manufacture and use before the patent application date, and continuing to manufacture and use it only within the original scope;