Despite his many different faces, the “person skilled in the art” (PSITA), also called “the person having ordinary skill in the art” or PHOSITA, is a famous character in the field of patents.
PSITA is a legal concept found in many patent laws, which is used in various aspects of patent examinations worldwide. In most jurisdictions, it is a hypothetical person who is presumed to be a skilled practitioner in a technical field with average knowledge and ability and who is aware of what is common general knowledge in the art at a given relevant date.
