How does the “broadest reasonable interpretation” apply to means-plus-function claim limitations?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-29 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 broadest reasonable interpretation (BRI) of means-plus-function claim limitations is subject to specific rules under 35 U.S.C. 112(f). According to MPEP 2111 : “The broadest reasonable interpretation of a claim element (also commonly referred to as a claim limitation) is limited by the description in the specification when 35 U.S.C. 112(f) or pre-AIA 35 U.S.C. 112, sixth paragraph, is invoked.” This means that for means-plus-function limitations, the BRI is constrained by the corresponding structure, material, or acts described in the specification and their equivalents. Examiners must consider the specification when interpreting these claim elements, rather than relying solely on the broadest dictionary definition. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Claims Not Given Broadest Reasonable Interpretation During Infringement and Validity Proceedings MPEP 2111 Permitted Broadest Reasonable Interpretation Not Equating Terms MPEP 2111 Broadest Reasonable Interpretation Consistent With Art MPEP 2111 Broadest Reasonable Interpretation Consistent With Art MPEP 2111 Broadest Reasonable Interpretation Consistent With Art MPEP 2111 Claim Interpretation Must Be Broad MPEP 2111 Claim Term Must Be Reasonably Interpreted MPEP 2111 Pending Claims Must Be Interpreted Broadly MPEP 2111 Required Claims Must Be Interpreted Broadly for Compliance with Section 112(b) MPEP 2111 Claims Must Be Construed Broadly Based on Specification MPEP 2111 Other Related FAQs 5 FAQs Collapse Can applicants provide their own definitions for claim terms? What is the relationship between the broadest reasonable interpretation and the doctrine of claim differentiation? How does the broade...