EP1396471-A2 -- DE1667346-A   ;  EP1170249-A1   TOYOTA JIDOSHA KK (TOYT)   NAKANISHI H,  MATSUMOTO S;  WO2001051410-A1   ;  WO2001074710-A1   ;  WO2002030810-A1   ;  US2004048115-A1 -- US3594232-A   VARTA AG (VART);  US5635039-A   LYNNTECH INC (LYNN-Non-standard)   HITCHENS G D,  MURPHY O J,  CISAR A J,  GONZALEZ-MARTIN A;  US5928409-A   NEW JERSEY INST TECHNOLOGY (NEWJ-Non-standard)   SIRKAR K K;  US6024935-A   HYDROCATALYSIS POWER CORP (HYDR-Non-standard)   MILLS R L,  GOOD W R,  POPOV A I,  PHILLIPS J;  US20030009942-A1   ;  US20030235724-A1   ;  US6300000-B1   GORE ENTERPRISE HOLDINGS INC (GORE)   CAVALCA C,  ARPS J H,  MURTHY M;  US6322917-B1   PLUG POWER LLC (PLUG-Non-standard)   ACKER W P;  US6383671-B1   ;  US7316719-B2 -- DE1667346-A1   ;  EP1170249-A1   TOYOTA JIDOSHA KK (TOYT)   NAKANISHI H,  MATSUMOTO S;  US3594232-A   VARTA AG (VART);  US5635039-A   LYNNTECH INC (LYNN-Non-standard)   HITCHENS G D,  MURPHY O J,  CISAR A J,  GONZALEZ-MARTIN A;  US5928409-A   NEW JERSEY INST TECHNOLOGY (NEWJ-Non-standard)   SIRKAR K K;  US6024935-A   HYDROCATALYSIS POWER CORP (HYDR-Non-standard)   MILLS R L,  GOOD W R,  POPOV A I,  PHILLIPS J;  US20030009942-A1   ;  US20030235724-A1   ;  US6300000-B1   GORE ENTERPRISE HOLDINGS INC (GORE)   CAVALCA C,  ARPS J H,  MURTHY M;  US6322917-B1   PLUG POWER LLC (PLUG-Non-standard)   ACKER W P;  US6383671-B1   ;  WO2001051410-A1   ;  WO2001074710-A1   ;  WO2002030810-A1   ;  US2008070071-A1 -- US3594232-A   VARTA AG (VART);  US5928409-A   NEW JERSEY INST TECHNOLOGY (NEWJ-Non-standard)   SIRKAR K K;  US20030009942-A1   ;  US20030235724-A1   ;  US6322917-B1   PLUG POWER LLC (PLUG-Non-standard)   ACKER W P;  US7655056-B2 -- DE1667346-A1   ;  EP1170249-A1   TOYOTA JIDOSHA KK (TOYT)   NAKANISHI H,  MATSUMOTO S;  US3594232-A   VARTA AG (VART);  US5928409-A   NEW JERSEY INST TECHNOLOGY (NEWJ-Non-standard)   SIRKAR K K;  US20030009942-A1   ;  US20030235724-A1   ;  US6322917-B1   PLUG POWER LLC (PLUG-Non-standard)   ACKER W P;  WO2001051410-A1   ;  WO2001074710-A1   ;  WO2002030810-A1