Nintendo is being sued for allegedly violating one of Gamevice's patents. Then a company claiming to own a patent describing handheld systems including the Game Boy Advance and Nintendo DS filed a lawsuit that also had to be fought and won.
But patent banter aside, what's really interesting about the lawsuit is how much is at stake - Gamesvice is calling not only for damages, but a sweeping ban on Switch sales.
The Switch and its detachable Joy-Con controllers are said to be "too close to Gamevice's vision of a combination of detachable game controller and a device with a 'flexible bridge section, according to Endgadget".
Neither Gamevice nor Nintendo responded to CNBC's request for comment at the time of writing. The Wikipad, for instance, included a detachable game controller that both held the tablet in place and provided extra buttons and controls along the sides, while the Gamevice controller is a more refined version of the product for Apple and Samsung smartphone devices.
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The Gamevice Wikipad, an accessory to turn a tablet into handheld gaming device. The Nintendo Switch Joy-Cons are also able to work while detached from the Switch console itself, as pointed out by Eurogamer.
The Switch launched in March and has sold 4.7 million units by Nintendo's latest count.
Reported by Engadget, the company claims that Nintendo has used patents that Gamevice owns for the Switch without the company's permission.
However, given that Nintendo seems to be equally diligent about filing patents for its various devices, Gamevice may find it has a hard road ahead.