Amine's patent on phosphonate redox shuttles

http://www.google.com/patents?id=Auv-AQAAEBAJ&pg=PA11&lpg=PA11&dq=Redox+shuttles+for+high+voltage+cathodes&source=bl&ots=wVbU5r1XK4&sig=2DusT_PibwmwGfJZWRq9q3t438U&hl=en&sa=X&ei=2GQ_UMrOGoeq2gX6i4G4DQ&ved=0CDIQ6AEwAQ#v=onepage&q=Redox%20shuttles%20for%20high%20voltage%20cathodes&f=false