[6.4.1基本原则](2-7-6.4.1%E5%9F%BA%E6%9C%AC%E5%8E%9F%E5%88%99.md) [6.4.2申请满十八个月公布后进入实质审查程序的检索](2-7-6.4.2%E7%94%B3%E8%AF%B7%E6%BB%A1%E5%8D%81%E5%85%AB%E4%B8%AA%E6%9C%88%E5%85%AC%E5%B8%83%E5%90%8E%E8%BF%9B%E5%85%A5%E5%AE%9E%E8%B4%A8%E5%AE%A1%E6%9F%A5%E7%A8%8B%E5%BA%8F%E7%9A%84%E6%A3%80%E7%B4%A2.md) [6.4.3申请提前公布后进入实质审查程序的检索](2-7-6.4.3%E7%94%B3%E8%AF%B7%E6%8F%90%E5%89%8D%E5%85%AC%E5%B8%83%E5%90%8E%E8%BF%9B%E5%85%A5%E5%AE%9E%E8%B4%A8%E5%AE%A1%E6%9F%A5%E7%A8%8B%E5%BA%8F%E7%9A%84%E6%A3%80%E7%B4%A2.md)