British Telecom has filed a lawsuit against Google alleging that some of Google's services including Android, Google Maps infringe on six of its patents.
The lawsuit, filed in the state of Delaware in the US, relates to six patents which BT says are infringed by Google Android services, including Google Maps, location-based advertising, Google Music and other products in the Android Marketplace.
If the verdict goes against Google, then Google or mobile handset makers will have to pay royalties to BT on each Android handset in use and produce by them.
Intellectual property analyst Florian Mueller wrote in his blog that with so many major patent holders asserting their rights, obligations to pay royalties may force Google to change its Android licensing model and pass royalties on to device makers. Android is at the center of a number of patent disputes involving large companies including Oracle and Apple.
A Google representative denied the allegations and said that they would fight this claim.