This document discusses the past, present, and future of augmented reality (AR) technology. It outlines key AR patents from Apple and Microsoft from 2009 to 2010. It also mentions recent developments like the Fraunhofer high-performance mixed reality system and Qualcomm's Snapdragon chips. The document discusses current challenges of AR like device constraints and occlusion. It envisions future applications of AR in areas like education, marketing, and games. It raises questions around monetization models and standards for AR technologies.