On Friday the Hong Kong Patent Office granted Apple a mix of 27 icons and user interfaces relating to iOS. The one exception was the iBooks icon for the Mac. Why these icons were filed and registered as design patents and not trademarks is perhaps a finer point of Chinese law. Nonetheless, it's clear that Apple is attempting to protect the iPhone's interface designs from copycats. Some of Apple's user interface designs cover the iPhone's "Slide to Answer," button, the camera, control center and more. This is the single largest group of design patents ever granted to Apple in Hong Kong in a single day.