Apple countersues Nokia over phone patents


NEW YORK (AP) — Apple is suing phone maker Nokia for patent infringement, a countermove to Nokia’s suit against technologies used in Apple’s iPhone.

Apple Inc. says in its suit that Nokia Corp. is infringing on 13 of Apple’s patents.

In October, Finland’s Nokia filed suit in U.S. federal court claiming Apple, based in Cupertino, Calif., infringes on 10 of its patents.

Countersuits are a staple of patent litigation, which often ends in cross-licensing agreements.