The Supreme Court has sided with smartphone maker Samsung in its high-profile patent dispute with Apple over design of the iPhone.
The justices on Tuesday threw out a $US399 million ($A535 million) judgement against Samsung for copying parts of the iPhone's patented design.
The court said Samsung may not be required to pay all the profits it earned from 11 phone models because the features at issue are only a tiny part of the devices.
The case now returns to a lower court for further proceeding in the case.

