A new Apple patent application filing surfaced in Europe recently pertaining to apparatus, systems and methods for improving compressive stress in glass members such as the cover glass for an iDevice like an iPhone. The patent describes a new annealing process that is used before chemically treating the glass to further strengthen it. Yet the question that first comes to mind is why is Apple so focused on advancing glass processes lately? It's the second major patent on advancing glass processes in two weeks. Is it just a backup plan or is Apple working on new projects? Only Time will tell.