IMRA Am., Inc. v. IPG Photonics Corp., 2010 WL 2812999 (E.D. Mich. July 15, 2010)

Key Insight: Court imposed spoliation sanction and precluded plaintiff and its expert from offering opinion or evidence on any simulations relied upon in forming the basis of plaintiff?s Second Infringement Report where the input data upon which the simulations relied were lost in a computer crash and where plaintiff failed to timely disclose the destruction

Electronic Data Involved: Input data forming basis for expert’s report