There are certain exclusion arguments that stand out as tending to work more often than others—things like a Rule 702 motion for failure to apportion, a motion to exclude a Doctrine of Equivalents argument offered for the first time in a reply expert report, or a motion to exclude an exhibit not on the exhibit list. It's not that they win every single time, but parties often seem to have an uphill battle against them.
Another argument on that list is "using privilege as a sword and a shield." It's not uncommon for a party to get …