Michael Schwartz Ph.D.

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Federal Circuit Develops the ‘At Once Envisage’ Standard of Anticipation and Affirms the Importance of Specialized Considerations in the Chemical Arts

Photo of Michael Schwartz Ph.D.By Michael Schwartz Ph.D. on Posted in Patent
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

Federal Circuit Requires Definitive Written Description Support for Quantitative Values and Ranges

Photo of Michael Schwartz Ph.D.By Michael Schwartz Ph.D. on Posted in Federal Circuit, Patents
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
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