Description  Claims  Drawing  Cited references 

US6430966B   [0006] 
US6532769B   [0007] 
US7470670B   [0008] 
US7674735B   [0008]  [0011] 
US7378361B   [0009] 
US7410921B   [0010] 
US9522842B   [0012] 
US6699807B   [0013] 
US4853349A   [0014] 
US2008090715A1   [0014] 

Journal of Power Sources   [0004] 
J.Eur. Ceram. Soc.   [0005] 
J. Non-Cryst. Solids   [0005] 
Int. J. Hydrogen Energy   [0005]