However, Koh said that the jury had miscalculated how much Samsung owed Apple.
Samsung is expected to appeal the finding. It accepted that it is guilty of infringing Apple’s features, but argues it only owes around $50 million.
Apple however argued that the Samsung’s success in the smartphone market is entirely down to it infringing its patents. It argues that many customers buying a Samsung smartphone would have bought an iPhone instead.
Apple said in a statement: "For Apple, this case has always been about more than patents and money. It has been about innovation and the hard work that goes into inventing products that people love.
“While it’s impossible to put a price tag on those values, we are grateful to the jury for showing Samsung that copying has a cost.”
The $290 million awarded in this case comes on top of the $550 million Samsung already owes Microsoft from the original case.
In total, Apple has now been awarded nearly $930 million in damages from Samsung.
The case has seen heated exchanges from both sides of the courtroom.
Earlier in the week, Samsung lawyer William Price argued that “Apple doesn’t own beautiful and sexy”, nor did it own the “basic rectangle” shape of smartphones.
Meanwhile, Apple head of marketing said that Samsung’s copying had diminished the iPhone brand and is the only reason it now dominates the market.