Surface Studio--was there an Apple patent years ago?

David writes today about his desire for an iMac that works like a Surface Studio. I would swear on a stack of Bibles (or holy book of your choice) that I saw a report of an Apple patent of this exact idea many years ago. Does anyone else remember seeing that?

Thanks, although I remember literally a Mac that in the upright position was OS X and then when you rotated it down on its rocker and it was flat became a touch surface.

Anything here?

Thanks, but that looks like released Macs, not patents