Case history and files: https://www.pacermonitor.com/public/case/22192223/Gamevice,_Inc_v_Nintendo_Co,_Ltd_et_al#
The patent in question.
And this looks awful similar…
I wonder if it’s the case that Nintendo has patents that wikipad/gamevice infringes on. I wouldn’t be surprised if so, but clearly the switch has borrowed heavily from wikipad/gamevice, or, possibly of course, independently came to the same conclusion that an obvious thing was a goood idea.