A clever way of making sure haptic vibratory feedback
is restricted to a specific area, the overall design
of the Retina MacBook Pro and the structure-strengthening design of the RMBP's vents
have all been given patent protection by the US Patent and Trademark Office. The latter patent complements one already awarded earlier for the asymmetrical fans
used in the RMBP to suppress fan noise, while the haptic feedback patent hints at future changes for iOS devices.