An electrochromic window includes a first transparent substrate, an electroconductive film electrode, a transparent electrochromic film in contact with said electroconductive film, an ion-conductive layer in contact with said electrochromic film, a counter electrode in contact with said ion-conductive...http://www.google.es/patents/US5066111?utm_source=gb-gplus-sharePatente US5066111 - Electrochromic window with integrated bus bars
