EPGL maybe farther along then any of us here think? On July 29, 2013 EPGL's put out their first pr concerning their Energy Harvester. I would think they wouldn't have filed a PR unless they had already started the Paper work for the Patent. http://www.prnewswire.com/news-releases/epgl-medical-invents-self-powered-contact-lenses-for-medical-and-consumer-applications-217458881.html Googles Smart Contact Lens Patent was filed 09/26/2012 and was granted 03/24/2015