本文通过对几个实际案例的分析,探讨了如何把握专利申请文件修改超范围的判断。本文从《专利法》第33条立法本意出发,针对是否属于明显错误和未被原始申请文件直接记载的修改这两种情形,结合实际案例分析了判断原则的具体应用,希望能对审查员在判断修改超范围以及申请人在修改专利申请文件时提供一定的思路。 Through analyzing several actual cases, this paper discusses how to grasp the patent application documents to amend the scope of judgments. Based on the legislative intent of Article 33 of the Patent Law, this article analyzes the concrete application of the principle of judgment in light of the fact that there are obvious errors and modifications not directly recorded in the original application document, Judgment to amend the over-range and the applicant to modify the patent application documents to provide some ideas.