PHOSITA

Summary

Acronym for a “person having ordinary skill in the art.” This is a hypothetical person with an ordinary level of skill in the technical field of the invention and an ordinary level of creativity. This person is presumed to have known all the prior art that existed at the relevant time in the technical field of the invention. Many key issues in patent litigation, including obviousness, are analyzed from the viewpoint of a person of ordinary skill in the art.