Article 2 of the Interpretation of Civil Procedure stipulates that patent dispute cases shall be under the jurisdiction of intellectual property courts, intermediate people's courts and grassroots people's courts determined by the Supreme People's Court. A and b are correct. Article 2 of the Supreme People's Court's Provisions on Several Issues Concerning Intellectual Property Courts: "The intellectual property courts shall hear the following cases: (1) cases appealing against judgments and rulings of first-instance civil cases such as invention patents, utility model patents, new plant varieties, layout-design of integrated circuits, technical secrets, computer software and monopoly; (2) Appeals against the first-instance judgment of Beijing Intellectual Property Court on authorizing the confirmation of invention patents, utility model patents, design patents, new plant varieties and layout designs of integrated circuits. " C is right and D is wrong.