Anticipation of a claim generally requires that a single prior art reference explicitly discloses each and every claim element.[1] However, absent an express teaching in the prior art, a claim may also be anticipated if it is directed to a member of a limited class that a person of ordinary skill in the art would … Continue Reading
Under U.S. law, every patent claim must be supported by an adequate written description, which conveys to those skilled in the art the nature and breadth of the invention.[1] The Federal Circuit recently decided two cases that found that claiming both a quantitative value and a quantitative range requires particular clarity in the disclosure. In … Continue Reading