Section 1.2 of the Examination Guidelines: What is included in the scope of preliminary examination for invention patents?

[Key Conclusion] The preliminary examination scope includes four components: formal review of application documents, review for obvious substantive defects, formal review of other documents, and review of relevant fees (Paragraph 1, Article 50 of the Implementing Regulations of the Patent Law; Section 1, Part I, Chapter 1 of the Guidelines).

[Legal Reference] Patent Law Article 26; Implementing Regulations of the Patent Law Article 50, Paragraph 1; Guidelines Part I Chapter 1 Section 1

[Practical Interpretation] ① Formal Examination: Verify whether the application includes all documents required under Article 26 of the Patent Law and check if the document format clearly violates Articles 19–22 and Article 26 of the Implementing Regulations of the Patent Law. ② Obvious Substantive Defect Review: The preliminary examination addresses only obvious issues, such as whether the case clearly falls under Article 5 or Article 25 of the Patent Law, or fails to meet the definition of an invention under Article 2, Paragraph 2. No comprehensive substantive assessment is conducted at this stage. ③ Other Document Review: Covers procedures and documents related to patent applications, including power of attorney, priority claims, and incorporation by reference, ensuring compliance with regulations and submission within statutory deadlines. ④ Fee Review: Confirm that applicable fees have been paid in accordance with Articles 110, 112, 113, and 116 of the Implementing Regulations of the Patent Law.

The applicant's invention application is complete and properly formatted, but the subject matter clearly falls under scientific discovery. During preliminary examination, the examiner issued an Office Action addressing obvious substantive defects per procedure, without waiting for the substantive examination phase. After the applicant submitted arguments, the defect remained unresolved, and the application was rejected.

[Keywords] Preliminary examination scope; formal examination; obvious substantive defects; Article 26 of the Patent Law; Article 50, Paragraph 1 of the Implementing Regulations of the Patent Law; Part I, Chapter 1, Section 1 of the Guidelines; fee examination; What is included in the preliminary examination scope for inventions?

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Disclaimer: This article is for industry education purposes only and does not constitute legal advice for specific cases. For case-specific guidance, please consult a qualified professional agent.