Article 57 of the Detailed Rules for the Implementation of the Patent Law stipulates that if a patent infringement dispute involves an invention patent of a new product manufacturing method, the unit or individual that manufactures the same product shall provide proof that its product manufacturing method is different from the patented method; Where a patent for utility model is involved, the people's court or the patent administration department may require the patentee to issue a search report made by the patent administration department of the State Council.