Even so, jurors delivered the verdict after less than three days of deliberations, so it is a temptation to think they just wanted to get their job done by the weekend, but that's not necessarily the case, one legal expert told Friday.

"It's surprising they came back so quickly, given that it was a complicated case and very complicated verdict form, but that said, it looks like they were thoughtful about it and they did their job," said Roy Futterman, director at DOAR Litigation Consulting and a clinical psychologist who works on trial strategies and the mindset of jurors.

"One sign of that is that the verdicts were consistent, they held together -- they voted one way on infringement and another way on invalidity; it all tells the same big story," he said.

Samsung says the verdict should be viewed "as a loss for the American consumer." Apple says it will seek sales bans against Samsung's mobile products.

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