A US federal court jury has ordered Samsung to pay Apple $539 million (£402.7m) for copying iPhone design features in a patent case dating back seven years.

Sky News reports that the verdict was delivered after a jury deliberated for almost five days and backed Apple’s claim that Samsung had copied some of its technology used to power the iPhone.

Apple in the long-running legal dispute which started in 2011, initially requested $2.5 billion (£1.87bn) but was awarded about $1 billion (£750m) by a jury in 2012.

An appeal court determined Apple could not legally lay claim to the iPhone’s appearance. That meant Samsung was asked to pay about $548m (£328m).

Samsung believes it should only need to pay $28m (£21m) for the parts it has used and not damages equivalent to the profits from the iPhone.

This may not be the end of the legal wrangling.

“Today’s decision flies in the face of a unanimous Supreme Court ruling in favour of Samsung on the scope of design patent damages,” Samsung said in a statement.

“We will consider all options to obtain an outcome that does not hinder creativity and fair competition for all companies and consumers.”

Apple welcomed the jury’s decision, saying: “Samsung should pay for copying our products.”

However, Samsung believes it should only need to pay $28 million for the parts it has used and not damages equivalent to iPhone profits.