American Navigation Systems, Inc. (AmNav) has filed a patent infringement lawsuit against Apple. The patent infringement lawsuit concerns Apple's use of GPS in mobile devices, iDevices more specifically. According to AmNav's complaint before the court, the inventors of their acquired patent "conceived a way to display GPS data in real time on a portable mapping device." AmNav who is seeking a royalty from Apple, continually references Google Maps far more than they do Apple Maps. Their angle is to go after the device makers as this is where their patent applies. So instead of going after Google directly, they're going after Apple for Maps on iOS and Samsung for Maps on Android.