Nintendo Apply For Touch Pen Attachment Patent
Nintendo Co., Ltd. have applied for a new Touch Pen Attachment patent (特開2020-006020) in Japan and the United States. The touch pen attaches to the game controller (Joy-Con) via an attachment slide. Other uses shown in the images (added below) include with HD Rumble and being able to use the touch pen while still attached to the Joy-Con. Please note this is just a brief summary of a 52 page PDF. Thanks to J-PlatPat.