Nokia says it has filed a complaint against Apple with the Federal District Court in the Western District of Wisconsin. It's alleging that Apple iPhone and iPad 3G products infringe five Nokia patents that relate to enhanced speech and data transmission, using positioning data and innovations in antenna configuration.
Paul Melin, Nokia's General Manager of Patent Licensing, said "Nokia has been the leading developer of many key technologies in mobile devices. We have taken this step to protect the results of our pioneering development and to put an end to continued unlawful use of Nokia's innovation."
In recent years the Western District of Wisconsin has developed a reputation for quick trials with tech-savvy juries that tend to favour patent holders.
Nokia started legal action against Apple last year in Delaware, claiming that the Apple iPhone infringed Nokia's patents for GSM, 3G and WLAN technologies.