More than 3 years after Steve Jobs announced the iPhone on the stage at Macworld 2007, Apple has finally secured the trademark. iPhone is a registered trademark of Apple Inc. – officially as of Feb 09, 2010. The registration number is 3,746,840.
The procedure, as you can see, required a lot of time, becasue Cisco in the US and Comwave in Canada were marketing VoIP products under the same name.