How is that possible ?
How can one lose what one does not have other wise such stupid patents would never be granted. Square, round, rectangular etc, shapes have been in existence for millenniums. Just because one individual used it before another for a particular product does not warrant a patent. So far as the icons are concerned I wonder how no one has patented 16x16 to 64x64 pixels sizes and everything in between ! It might even be " patent pending "