What distinguishes a method claim from an apparatus claim?

A method claim is focused on describing a specific process or series of steps that lead to a desired outcome, often detailing the actions performed to achieve that outcome. This type of claim is concerned with the "how" of a solution or invention. For instance, a method claim might explain the procedures for conducting a chemical reaction or the steps in a manufacturing process.

In contrast, an apparatus claim pertains to a physical device or system designed to carry out a specific function or utility. It details the structure, components, and interrelations that enable the device to operate. An example could be a machine that performs the steps outlined in a method claim.

Understanding this distinction is important in patent law, as the two claim types serve different purposes and protect different aspects of an invention. Method claims protect processes, while apparatus claims protect the equipment used in those processes, creating a comprehensive scope of protection when both are included in a patent application.