In a typical case from the Annual Report on Intellectual Property Cases (2012) of the Supreme People's Court of China, the Supreme Court held that "in assessing inventiveness, when a patent applicant or patentee submits comparative experimental data after the filing date to prove an unexpected effect generated by the claimed technical solution, the precondition for acceptance of the experimental data is that the effect to be proved is expressly described in the application documents as originally filed": see case number 20 of the Annual Report regarding the Supreme Court's Administrative Ruling (2012) Zhi Xing Zi Number 41, which involves a patent validity dispute, Takeda Pharmaceutical Co Ltd v Patent Reexamination Board, Sichuan Haisco Pharmaceutical Co Ltd and Chongqing Pharmaceutical Research Institute Co Ltd.