Apple-Samsung patent battle nears end

Apple and Samsung each laid claim to the spirit of Silicon Valley innovation as they delivered their closing arguments in their multibillion-dollar patent battle.

Apple is demanding total damages of up to $2.75bn from Samsung for what it alleges is wilful infringement of its design patents and so-called "trade dress" rights for the iPhone and iPad in the US.

Samsung, which countersued over Apple's alleged use of its wireless transmission patents and other underlying mobile-phone technology, is looking for $422m from its rival in compensation.

Two additional courtrooms were provided to accommodate the large number of reporters and observers who came to the San Jose courthouse for Tuesday's closing arguments, the biggest crowd yet seen in the case.