Person having ordinary skill in the art

A person having ordinary skill in the art (PHOSITA), a person of (ordinary) skill in the art, a person skilled in the art, a skilled addressee or simply a skilled person is a legal fiction found in many patent laws throughout the world. This hypothetical person is considered to have the normal skills and knowledge in a particular technical field, without being a genius. This measure mainly serves as a reference for determining, or at least evaluating, whether an invention is non-obvious or not, or involves an inventive step or not. If it would have been obvious for this fictional person to come up with the invention while starting from the prior art, then the particular invention is considered not patentable.