Nokia sues Apple for patent infringement

Nokia announced today it is suing Apple in German and US courts for patent infringement, claiming the US tech giant was using Nokia technology in "many" products without paying for it.

Finnish Nokia, once the world's top mobile phone maker, said the two companies had signed a licensing agreement in 2011, and since then "Apple has declined subsequent offers made by Nokia to license other of its patented inventions which are used by many of Apple's products." "After several years of negotiations trying to reach agreement to cover Apple's use of these patents, we are now taking action to defend our rights," Ilkka Rahnasto, head of Nokia's patent business, said in a statement.

The complaints, filed in three German cities and a district court in Texas, concern 32 patents for innovations related to displays, user interface, software, antennae, chipsets and video coding. Nokia said it was preparing further legal action elsewhere.

Nokia was the world's leading mobile phone maker from 1998 until 2011 when it bet on Microsoft's Windows mobile platform, which proved to be a flop. Analysts say the company failed to grasp the growing importance of smartphone apps compared to hardware.