Sapphire has found its way to the iPhone 5S via Apple's Touch ID technology, but a recent patent filing indicates the company might bring the stone to more devices.
The US Patent and Trademark Office on Thursday published an Apple patent application describing a method by which sapphire could be used to build a consumer electronics device. AppleInsider earlier reported on the application.
Apple integrated sapphire -- the second-hardest stone in the world after diamond -- into both the iPhone 5 and iPhone 5S. The company used sapphire to protect the iPhone 5's rear lens, and sapphire has … Read more