Most judges in the District of Delaware limit the parties to three motions in limine per side. Visiting judges sometimes permit more, but I get the sense that this limit is something native D. Del. judges generally don't want the parties to change when submitting a proposed scheduling order.
But I can't recall a patent case where the parties did not use all of their motions in limine, and want more (even if they didn't ask the Court). These evidentiary issues can just have a large effect on trial. Plus, with a mountain of work bearing down on you in the leadup to trial, it's great to think you might knock out some opposing …
