HTC Corporation v. Yozmot 33 Limited, Patents Court, Chancery Division, High Court of Justice, London, UK, 20 April 2010,  EWHC 786 (Pat)
The Patents Court has held Yozmot’s patent EP (UK) 0 909 499 to be partially valid.
Yozmot’s patent concerned a boosted loudspeaker for a mobile telephone. Yozmot alleged infringement of claims 1,2, 5 and 6 of the patent in respect of a number of HTC’s mobile phones and asserted claims 5, 6 and 7 as being independently valid. HTC alleged that the patent was invalid for lack of novelty, obviousness, insufficiency, added matter and unpatentable subject matter.
Mr Justice Arnold held claims 1, 5 and 6 to be invalid for lack of novelty and obviousness. The allegations of insufficiency, added matter and unpatentable subject matter failed and so claim 7 was held to be valid. Mr Justice Arnold held that if claims 1, 5 and 6 were valid, they would have been infringed by HTC.