Patent
Claim construction drawn from patent prosecution history and given as part of jury charge was not a clear and unambiguous disavowal of claim scope.
Or something like that.
http://www.cafc.uscourts.gov/sites/default/files/opinions-orders/15-1246.Opinion.1-27-2016.1.PDF
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.