MPEP Section 2173, Claims Must Particularly Point Out and Distinctly Claim the Invention

Executive summary:

This document contains one section of the Manual of Patent Examining Procedure (the "M.P.E.P."), Eighth Edition, Fifth Revision (August 2006). This page was last updated in July 2007. You may return to the section index to find a particular section. Alternatively, you may search the MPEP use the search box that appears on the bottom of every page of BitLaw--be sure to restrict your search to the MPEP in the pop-up list.

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2173 Claims Must Particularly Point Out and Distinctly Claim the Invention

The primary purpose of this requirement of definiteness of claim language is to ensure that the scope of the claims is clear so the public is informed of the boundaries of what constitutes infringement of the patent. A secondary purpose is to provide a clear measure of what applicants regard as the invention so that it can be determined whether the claimed invention meets all the criteria for patentability and whether the specification meets the criteria of 35 U.S.C. 112, first paragraph with respect to the claimed invention.