Samsung now adds Apple's latest handset to a US patent lawsuit claiming the iPhone 5 infringes eight of its technologies.
The disputed innovations include a way to synchronise photos, music and video files across several devices, and a method to capture and send video over the internet.
Samsung had already filed claims against earlier iPhones and iPads but the current claims seems to be legal move.
Although several of Apple's claims against Sumsung have been rejected, it recently scored a major victory when a California-based jury ruled Samsung should pay it over $1bn (£620m) in damages.
This comes when major reform was called on the US patent laws.