Section 1.1 of the Examination Guidelines: What are the main tasks in the preliminary examination of invention patents?

[Core Conclusion] The preliminary examination of invention patents assesses whether the application documents, other submissions, and associated fees comply with the Patent Law and its implementing regulations to ensure the application meets disclosure requirements (Patent Law Article 34; Guidelines Part I, Chapter 1, Section 1).

[Clause Anchor] Article 34 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

【Practical Analysis】 ① Clarify the procedural role: Preliminary examination is a mandatory step between filing and publication. Publication after 18 months from the filing date requires passing this examination; unresolved formal issues will prevent the application from entering the publication process. ② Handle defects appropriately: For correctable defects, the examiner notifies the applicant to submit corrections. For uncorrectable defects, an Office Action is issued detailing the nature of the defect, leading to rejection and termination of the examination. ③ Manage deadlines diligently: Late submission of documents or unpaid fees may result in the examiner deeming the application withdrawn, the document as not submitted, or the request as not filed. Monitor all deadlines carefully after submission.

In a patent application filed by an applicant, the title of invention on the request form did not match that in the description. The examiner issued a notice of correction. The applicant submitted a corrected document and replacement pages for the relevant amended files within the specified period, eliminating the defect. The application now meets publication requirements and will be published automatically 18 months from the filing date. If no response is received by the deadline, the application will be deemed withdrawn.

[Keywords] Preliminary Examination of Invention Patents; Examination Tasks; Article 34 of the Patent Law; Article 50, Paragraph 1 of the Implementing Regulations of the Patent Law; Part I, Chapter 1 of the Guidelines; Notice of Correction; Deemed Withdrawal; What Does Preliminary Examination Cover for Invention Patents?; XX Intellectual Property