No doubt inspired by yesterday’s reveal of the MotionPlus prototype process, Siliconera patent trawler Spencer Yip has uncovered a similar process, only this time for the Wii’s actual controllers.
https://lastchance.cc/prototyping-the-wiis-motionplus-453115496%3C/a%3E%3C/p%3E
There’s also a few different versions of the Classic Controller, and a couple of nunchuk variants as well.
Prototypes Of The Wii Remote, Nunchuk, And Classic Controller [Siliconera]