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« CVC Takes Its Turn at Filing Dispositive Motion to End Interference | Main | PTAB Denies Broad Motion No. 3 to De-designate Claims as Not Corresponding to Count No. 1 »

September 29, 2020

Comments

Oof: Biogen explicitly defined “polypeptide” in the ’755 patent:
Polypeptide — A linear array of amino acids con-nected one to the other by peptide bonds between the α-amino and carboxy groups of adjacent amino acids.
Per the Fed. Circuit: "The 'polypeptide' structure is thus defined by reference to its 'linear' array, without regard to its folded protein structure. The district court charged the jury with this definition..."

Defining your claim terms can backfire badly, leaving little room to argue during claim construction. Without that strict (and entirely gratuitious) definition, Biogen might have prevailed under the Amgen standard.

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