What are the limitations on the content of claims in a reissue application?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 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 content of claims in a reissue application is subject to certain limitations. According to MPEP § 1412 , “The content of claims in a reissue application is somewhat limited, as is indicated in MPEP § 1412.01 through MPEP § 1412.03.” This means that there are specific rules and restrictions that apply to the claims in a reissue application, which are detailed in the subsequent sections of the MPEP. These limitations may include: Restrictions on broadening claims Rules for presenting new claims Requirements for maintaining the original patent’s subject matter It’s important for patent attorneys and applicants to carefully review these sections to ensure compliance with reissue application claim requirements. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Content of Claims for Reissue Application Limited MPEP 1412 Amendments Must Be Submitted With Reissue Application MPEP 1410 Permitted No New Matter in Reissue Application MPEP 1401 Required No New Matter in Reissue Application MPEP 1401 Required Amendments Must Follow Specific Rules During Reissue Filing MPEP 1410 Required Claims Required for Reissue Application MPEP 1410 Permitted Examiner Must Examine Reissue Application MPEP 1405 Recommended Parts of Reissue Application Must Comply with Original Patent Rules MPEP 1410 Required Reissue Claims Must Not Enlarge Original Patent Scope MPEP 1401 Common Reasons for Reissue Application MPEP 1402 Other Related FAQs 5 FAQs Collapse How do I correctly add a new inventor to a Continued Prosecution Application (CPA)? How does inventorship work in a Continued Prosecution Application (CPA)? How does the inventorship in a Continued Prosecution Application (CPA) relate to ...