Motorola is infringing a Microsoft patent related to text input, according to a regional court in Munich. The verdict will result in a sales ban on some phones and Google-owned Motorola Mobility will also be liable for damages if an expected appeal is unsuccessful, the court said.

For Microsoft, the verdict in Munich - which is related to patent EP1040406, which describes a method for handling communication between a keyboard and an application - is a victory in a series of infringement cases against Motorola in Germany.

"We're pleased this decision builds on previous rulings in Germany that have already found Motorola is broadly infringing Microsoft's intellectual property. We will continue to enforce injunctions against Motorola products in Germany and hope Motorola will join other Android device makers by taking a licence to Microsoft's patented inventions," Microsoft said.

The injunction and sales ban haven't gone into effect since Motorola gets a chance to appeal the verdict, a spokeswoman at the court said.

Previously Microsoft has won injunctions against Motorola in the US and Germany for infringing patents related to the FAT file system, SMS messaging and ActiveSync.

Microsoft has been successful in convincing makers of Android-based smartphones, including Samsung Electronics and HTC, to sign licensing agreements. But Motorola has refused to do the same, hence the bad blood.

Recently Microsoft suggested that the two companies make peace, but only if a broad agreement is signed.

"With its phones and tablets now subject to injunctions in the US and Germany, Google can no longer doubt the relevance of Microsoft's patent portfolio to Motorola's products," Microsoft counsels Brad Smith and Horacio Gutierrez said.

Unsurprisingly, Motorola wasn't ready to settle and said that Microsoft was seeking inflated royalties tied to standards that Microsoft alone controls, while at the same time undercutting Motorola's own patent portfolio.