Nokia announced today that it has sued Apple for patent infringement in Germany and the US. According to the suit, Apple did agree to license a few Nokia patents in 2011, but has declined offers since then. "Through our sustained investment in research and development, Nokia has created or contributed to many of the fundamental technologies used in today's mobile devices, including Apple products," said Ilkka Rahnasto, Nokia's head of Patent Business, in a statement.

The suit was filed in Regional Courts in Dusseldorf, Mannheim and Munich in Germany and the US District Court for the Eastern District of Texas. A total of 32 patents are involved and cover a range of technologies that include everything from the display and user interface to chipsets and video encoding.

Apple is no stranger to patent infringement lawsuits. It paid $24.9 million in a Siri patent lawsuit earlier this year and $625 million in a Facetime patent lawsuit as well. Of course, it's had the occasional victory too, like when it sued Samsung for patent infringements and won.