Apple is riding high with both the iPhone and the newly-launched iPad, but Nokia is far from happy about the technology used in both. In fact, it has sued Apple over a breach of patent for both devices.According to the BBC, Nokia claims the infringements involve technology used to enhance speech and data transmission and antenna innovations. In a statement, Paul Melin, general manager of patent licensing at Nokia said: 'We've taken this step to protect the results of our pioneering development and to put an end to continued unlawful use of Nokia's innovation.' Nokia added that during the past two decades it has invested about $51bn (£34bn) in research and development, accruing around 11,000 patents.It's not the first time Nokia has gone knocking at Apple's door about patents. Last year, a similar lawsuit was launched by the company, which was swiftly responded to with another lawsuit from Apple claiming infringement of its own patents for smartphones. Yes, it's going to be a good Christmas for technology lawyers this year, especially as Apple has also embarked on a legal tussle with smartphone maker HTC too.Where does this leave you with your iPhone or iPad? Pretty much where it was last week. Although the issues are serious, it's unlikely to mean any product leaving the market or being amended significantly. More likely, the dispute will be worked through, with any wrongdoing likely to lead to a licensing deal for the technology concerned.