Let’s start with a riddle: can you name a person who has read every book, every journal, conducted every known experiment, and is knowledgeable about every single patent prosecution / litigation in the world? The answer? A “skilled person in the art.” This person is also known as a “person having ordinary skill in the art”, “a person of ordinary skill”, “person having ordinary skill in the art”, “PHOSITA”, “POS”, or simply, “a skilled person.” The skilled person in the art is a fictional legal entity, one who widely serves as a reference standard in patent laws around the world for evaluating inventiveness/obviousness. This skilled person also appears in patent…
