Apple’s just landed a major victory against HTC in a case where the latter was sued for violating patent #5,946,647, a patent which details a way to analyze and link data structures at the system level. As this is a core functionality of Android’s, other OEMs are at risk. The final decision was a future ban of imports by the ITC starting in 2012. The ban affects HTC’s devices up to Android 2.2, but 2.3+ devices have not been incriminated yet.
HTC isn’t being vexed by this, though, as they state that alternate solutions to avoid violating this patent are already in the works.
Android Phone, Apple Wins Ban Over Import of HTC Android Devices in the US; HTC Plans to Work-Around Patent Violation