Posts Tagged: "The Medicines Company v. Mylan Inc"

On April 6, 2017, the U.S. Court of Appeals for the Federal Circuit issued a precedential decision in The Medicines Company v. Mylan, Inc. (2015-1113, 2015-1151, and 2015-1181) that imports certain subject matter from the specification into the claims… This case provides some key takeaways for patent practitioners, some more obvious than others. First, as has been known for some time, referring to the “invention” in a patent’s specification can hurt, as can indicating that a particular process “includes all” of the embodiments the specification describes. This is why patents for inventions in the U.S. now curiously, if understandably, usually avoid using the word “invention”. Also, setting forth definitions in a specification can have unintended consequences not just for the term being defined but also for terms that are not explicitly defined even if unequivocally characterized in some other way. Prosecution history also matters too, particularly where an applicant distinguishes its invention during prosecution by explicitly characterizing “the invention” in terms divorced from the language of the claims themselves.