Apple Wins Patent for IM Chat

Apple has been granted a patent relating to the iPhone's IM Chat. Apple's invention relates generally to a user interface for displaying an exchange of messages during an instant messaging session, and, more particularly, to a method and apparatus for displaying instant message exchanges in a manner that graphically differentiates the participants in a conversation.

The patent number is 7,669,134, originally filed in Q2 2003. For more information, read this patent.