Trs. of Columbia Univ. v. Symantec Corp., No. 15-1146 (Fed. Cir. 2016)
Annotate this CaseColumbia’s six patents involve applying data analytics techniques to computer security to detect and block malware. Columbia sued Symantec, alleging infringement. Based on the district court’s claim constructions, the parties agreed to a judgment of non-infringement and a finding of invalidity for indefiniteness. The Federal Circuit affirmed in part, holding that the district court correctly construed the term “byte sequence feature” in connection with two patents and the term “probabilistic model of normal computer system usage” in connection with two other patents and correctly found certain claims indefinite. Reversing in part, the court held that the district court incorrectly construed the term “anomalous” in other patent claims by requiring the model of normal computer usage be built only with “typical, attack free data.”
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