The mobile telecom industry has seen a series of legal battles over patents in recent years with Apple and Google joined the growing smartphone market.
Here's a slideshow of the 5 biggest fights.

APPLE VS GOOGLE
Apple has also attacked Google's Android platform, by suing cellphone makers Samsung Electronics , Motorola Mobility and HTC. Apple sued Samsung in April this year, claiming Samsung's Galaxy line of smartphones and tablets infringe its patents and trademarks. Samsung then countersued, asserting its own patents against Apple. Apple is now pushing to put a ban on all Samsung Galaxy phones with iPhone and iPad designs. Motorola and Apple sued each other in October last year, while Apple filed patent infringement suits against HTC in March 2010. HTC later countersued. Last week Apple filed a fresh complaint against HTC with a U.S. trade panel over unspecified portable electronic devices and software. REUTERS
10. Google Docs
. Google's productivity suite includes Google Docs., which allows users to create, edit, and collaborate on documents in an online environment. Who needs the expensive productivity suites from Microsoft? . REUTERS
GEMALTO VS GOOGLE
Chipmaker Gemalto filed a patent infringement lawsuit in October 2010 against Google, and handset makers Motorola, HTC and Samsung over the Android operating system. REUTERS
KODAK VS RIM, APPLE
Photography company Eastman Kodak Co filed a complaint against Apple and Research In Motion in January 2010, arguing Apple's iPhone and RIM's camera-enabled BlackBerrys infringe a Kodak patent related to a method for previewing images. REUTERS
Oracle Android Apple Microsoft