Crane Security Technologies, Inc. et al. v. Rolling Optics AB (14-cv-12428).

Judge Sorokin precluded Rolling Optics from offering testimony that certain asserted claims are invalid. Defendants did not offer expert opinion that the claims were anticipated by Rowland Technologies patents or products, but sought to elicit non-expert fact testimony from a Rowland representative.  The Court determined that the technology at issue (described briefly here) was too complicated for a jury to understand without expert assistance, and precluded Rolling Optics from presenting any evidence, opinions or argument to the jury on the Rowland technology.  This case is in its fourth day of trial, so I expect to see more from this courtroom.