Nokia has won a patent infringement case against HTC in Germany related to power-saving technology.

The case was one of 22 patent infringement suits filed by Nokia against its rival HTC in Germany.

The District court of Mannheim ruled that HTC infringed on Nokia’s patent EP0673175, which helps in saving battery life on mobile phones.

Reacting to the court’s ruling, Nokia said it is pleased with the decision and it confirms the quality of its patent portfolio.

HTC said it is disappointed with the decision of the court and will appeal it as the company believes that the patent is invalid.

HTC added that the court’s decision will not affect its German business as the ruling covers three handsets, the Wildfire S, Desire S and Rhyme, which it no longer sells in the country.

Earlier this month, HTC won a patent case against Nokia in Germany, when a German court has dismissed two patent infringement lawsuits filed by Finnish mobile maker against it.

Last year, Nokia filed 45 patent infringement lawsuits against HTC, BlackBerry and ViewSonic in the US, UK and Germany.