In 2011, Dutch company Philips Electronics sent Nintendo a letter concerning patent infringement on the technology found in the Wii and Wii U. Apparently, things did not go Philips Electronics' way as they have now filed a lawsuit against the Japanese company.
Philips Electronics claims that two patents have been infringed upon by Nintendo. The first infringed item is described by the Official Complaint for Patent Infringement as "interactive virtual modeling products" while the second is "human-computer interaction features." While the legal document is laced with legal jargon, it seems that Philips Electronics is referring specifically to the technology that allows the Wii Remotes and Wii U Gamepad to serve as motion controllers as well as the technology in the consoles themselves that interprets the motion of said controllers.
Some of the compensation that Philips Electronics seeks are a judge declaring Nintendo's infringement deliberate and willful, full compensation of damages, tripling the estimated damages to be paid by Nintendo, and any other relieve that the Court may seem necessary.