A California jury found that Samsung used Apple designs in 13 older products
A Silicon Valley jury has ruled that Samsung must pay $290m (£180m) to Apple for copying iPhone and iPad features in its devices.
This verdict comes after a previous jury found Samsung owed Apple $1.05bn for copyright infringement.
However, US District Judge Lucy Koh ordered a new trial because she said that jury miscalculated the amount Samsung owed.
Samsung is expected to appeal.
The jury's ruling covers 13 of the 26 Samsung devices that Apple had argued copied its technology.
The $290m figure comes on top of the $550m Samsung owes Apple as a result of the initial verdict.
Apple shares traded slightly higher on the news. Samsung closed down slightly earlier in the day.