Techradar posted a news story that HTC's legal battle with Apple has taken a new twist, with the Taiwanese giant announcing that it had filed an 'invalidation action' against the US company in the UK courts.

The action is essentially a challenge to another company's patent that questions the validity on grounds of lack of information or that the holder did not invent the product. HTC Corp. Made an official statement to announce the action adding: "we don't comment on pending litigation.

HTC files 'invalidation action' against Apple in the UK