What is the purpose of citing prior art in patent files?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-30 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. The main purpose of citing prior art in patent files is to inform relevant parties about the existence of patents or printed publications that may affect the validity of patent claims. According to MPEP 2202 : “ The basic purpose for citing prior art in patent files is to inform the patent owner and the public in general that such patents or printed publications are in existence and should be considered when evaluating the validity of the patent claims. “ This practice helps ensure that all relevant information is available for consideration during any subsequent patent proceedings, such as reissue applications, reexamination proceedings, or other post-patent proceedings. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Patent Owner Can Submit Prior Art MPEP 2202 Permitted Patent Owner Can Submit Written Statements on Claim Scope MPEP 2202 Permitted Prior Art Citation Requirement for Patent Files MPEP 2202 Recommended Submission of Prior Art and Patent Owner Statements Required MPEP 2202 Permitted Patent Owner and Ex Parte Requester Citations Required During Reexamination MPEP 2202 Citations by Patent Owner and Third Party Requester in Inter Partes Reexamination MPEP 2202 Written Statements for Patent Claim Meaning MPEP 2202 Prohibited Separate Submission of Prior Art Without Request for Reexamination MPEP 2202 Permitted Person May Cite Patents or Publications Affecting Patentability MPEP 2202 Permitted Explanation of Prior Art Required for Patent File MPEP 2202 Required Other Related FAQs 5 FAQs Collapse Can citations be submitted anonymously to the USPTO? How are citations processed during an ex parte reexamination proceeding? Is there a fee for submitting prio...