US Patent 8186514 Transparent carrying case for portable electronic devices

A protective case for a portable electronic device combines a first side panel, a second, transparent side panel opposite the first side panel, and a peripheral side panel that is connected to both the first and second side panels. The second, transparent side panel is formed of first and second transparent layers that are bonded together to form a panel having a plurality of uniform, trapped-gas cells, each one fully sealed from all other cells. The transparent side panel enables full visibility of the contents of the case while providing cushioning for the contents. The first side panel also provides cushioning.