[5.1阅读有关文件](2-7-5.1%E9%98%85%E8%AF%BB%E6%9C%89%E5%85%B3%E6%96%87%E4%BB%B6.md) [5.2核对申请的国际专利分类号](2-7-5.2%E6%A0%B8%E5%AF%B9%E7%94%B3%E8%AF%B7%E7%9A%84%E5%9B%BD%E9%99%85%E4%B8%93%E5%88%A9%E5%88%86%E7%B1%BB%E5%8F%B7.md) [5.3确定检索的技术领域](2-7-5.3%E7%A1%AE%E5%AE%9A%E6%A3%80%E7%B4%A2%E7%9A%84%E6%8A%80%E6%9C%AF%E9%A2%86%E5%9F%9F.md) [5.4分析权利要求、确定检索要素](2-7-5.4%E5%88%86%E6%9E%90%E6%9D%83%E5%88%A9%E8%A6%81%E6%B1%82%E3%80%81%E7%A1%AE%E5%AE%9A%E6%A3%80%E7%B4%A2%E8%A6%81%E7%B4%A0.md)