Apple introduced iMessage at its Worldwide Developers Conference in June 2011 as a convenient service that allows you to send messages from one iPhone, iPod touch or iPad to another compatible device running iOS 5 or later. Apple then extended the messaging service to OS X by introducing Messages for Mac at the beginning of this year.
Today, Patently Apple reports that the U.S. Patent and Trademark Office has granted Apple a pair of registered trademarks for iMessage that it had originally filed for in September 2011. The USPTO officially describes iMessage as a communication service, namely for the transmission of text, data, images and video over a wireless connection. Apple also received a trademark on its Passbook icon.