A lawsuit filed against Nintendo claims the Switch's detachable controller design is covered by an existing patent. The filing comes from accessory maker Gamevice, which holds patents covering tech used in the Wikipad, an Android tablet. Gamevice is seeking a monetary settlement and a ban on Switch sales.
The Switch's controller design is allegedly overlapping with Gamevice's outlined combo of a detachable controller and a device with a "flexible bridge section."
Gamevice never succeeded in making tablet gaming popular, whereas the Nintendo Switch has seen 4.7 million sales just since March.