BlackBerry maker Research In Motion (RIM) on Wednesday won its patent battle in Britain with Motorola when a court in London ruled in favour of the Canadian wireless giant based at Waterloo near here.

In his ruling, Justice Richard Arnold of the London high court said RIM didn't infringe one of Motorola's patents - pertaining to email system - in its two systems. Motorola had moved the US International Trade Commission in New York last month on the same patent which was at dispute in the London court.