person with ordinary skill in the art.Patents. A fictional construct of the patent laws, denoting someone who has reasonably developed abilities in the field of the invention at issue. • The patent application must be clear and complete enough to teach a person skilled in the art how to make and use the invention without undue experimentation. [Cases: Patents  16(3).]

“The term ‘person skilled in the art …’ has been interpreted to mean a person having ordinary or fair information in that particular line, not necessarily a person of high scientific attainments. The skill or knowledge to be imputed to such a person will vary with the complexity of the art to which the invention relates.” Archie R. McCrady, Patent Office Practice 61 (2d ed. 1946).

[Blacks Law 8th]