The ongoing patent battle between Apple and Nokia escalated on Friday, when Apple moved to block imports of Nokia mobile phones to the US.
Apple made its request in a complaint filed with the International Trade Commission, an independent federal agency that examines issues including unfair trade practices involving patent, trademark and copyright infringement.
In December, Nokia filed its own complaint with the USITC in Washington. In it, the Finnish company alleged that Apple infringes seven Nokia patents "in virtually all of its mobile phones, portable music players and computers" and sought to ban imports of Apple's iPhone, iPod and MacBook products.
For more on this story, see Apple seeks ban on US Nokia imports on CNET News.
