Nokia, the world's biggest mobile phone maker, said on Dec. 28 it had asked the U.S. International Trade Commission (ITC) to open an inquiry into alleged infringement of Nokia patents by Apple.
Nokia has already filed a legal case against Apple, which has countersued the Finnish giant, in a fierce battle between the two mobile world titans as Apple's iconic iPhone eats up Nokia market share in the smartphone market.
Nokia's complaint focuses on seven Nokia patents and alleges that "Apple infringes Nokia patents in virtually all of its mobile phones, portable music players and computers," Nokia said.
"These patented technologies are important to Nokia's success as they allow better user experience, lower manufacturing costs, smaller size and longer battery life for Nokia products," the statement said.
Nokia patents manager Paul Melin said: "Nokia has been the leading developer of many key technologies in small electronic devices. This action is about protecting the results of such pioneering development."
Nokia filed its legal complaint against Apple in October in a federal court in Delaware. It accused Apple of infringing 10 patents covering "wireless data, speech coding, security and encryption and are infringed by all Apple iPhone models shipped since the iPhone was introduced in 2007."
Apple hit back earlier this month, alleging that Nokia was infringing Apple patents.
"While our litigation in Delaware is about Apple's attempt to free-ride on the back of Nokia investment in wireless standards, the ITC case filed today is about Apple's practice of building its business on Nokia's proprietary innovation," the statement said.
The Finnish giant posted its first quarterly loss in a decade in October, amid falling sales. Analysts said the poor results were partly due to the growing popularity of Apple's iPhone and RIM's Blackberry over Nokia models.
Copyright Agence France-Presse, 2009