Among the many other battles Samsung and Apple are fighting in various courts around the world, a particular case in Germany involves Samsung suing Apple, claiming that the latter's "VoiceOver" feature violates some Samsung patents. The case, being tried in Mannheim, has been put on hold as Apple has challenged the validity of the patents as a whole, which experts believe has a good chance of being successful. The judge in the case said that a possible nullification of the one remaining patent being asserted could render the current case moot.