Which aspect of a patent application describes how to make and use the invention?

The specification is a fundamental part of a patent application that details how to make and use the invention. It provides a comprehensive description of the invention, including its purpose, design, and the specific embodiments that illustrate the invention in various forms. The specification is vital because it must clearly convey enough information to enable a person skilled in the relevant field to replicate the invention without undue experimentation. This requirement assures that the patent serves its purpose of promoting innovation by disclosing useful knowledge to the public.

While claims define the scope of legal protection provided by the patent and establish what is being claimed as the invention, they do not encompass the detailed instructions necessary for making and using the invention. The abstract offers a brief summary of the invention and its technical field but lacks the depth and detail required for practical application. Diagrams can visually represent aspects of the invention but are supplementary to the written description and do not replace the requirement for a thorough specification. Thus, the specification is the correct aspect of a patent application that describes how to make and use the invention.