WO200024072-A1 -- EP687023-A1   VITO VLAAMSE INSTELLING TECHNOLOGISCH (VITO-Non-standard)   DIRVEN P,  ENGELEN W;  US4229490-A   TEXAS INSTR INC (TEXI)   FRANK S N,  FRANK J G;  US5773162-A   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  FRANK H A,  NARAYANAN S R,  CHUN W,  JEFFRIES-NAKAMURA B,  KINDLER A,  HALPERT G;  WO1996012317-A1   ;  US6153323-A -- JP02049356-A   ;  JP04206153-A   ;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5084144-A   PHYSICAL SCIENCES I (PHYS-Non-standard)   VILLAMBIRE N R K,  ANDERSON E B,  TAYLOR E J;  US5271917-A   ;  US5292600-A   H-POWER CORP (HPOW-Non-standard)   KAUFMAN A;  US5523177-A   GINER INC (GINE-Non-standard)   LACONTI A B,  KOSEK J A,  CROPLEY C C;  US5599638-A   UNIV SOUTHERN CALIFORNIA (USCA);  CALIFORNIA INST OF TECHNOLOGY (CALY)   FRANK H A,  NARAYANAN S R,  OLAH G A,  PRAKASH G K S,  SURAMPUDI S,  VAMOS E,  HALPERT G;  US5672439-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  JOHNSON M C,  COLBOW K M,  CAMPBELL S A;  US6187467-B1 -- EP687023-A1   VITO VLAAMSE INSTELLING TECHNOLOGISCH (VITO-Non-standard)   DIRVEN P,  ENGELEN W;  JP02049356-A   ;  JP04206153-A   ;  US4229490-A   TEXAS INSTR INC (TEXI)   FRANK S N,  FRANK J G;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5084144-A   PHYSICAL SCIENCES I (PHYS-Non-standard)   VILLAMBIRE N R K,  ANDERSON E B,  TAYLOR E J;  US5292600-A   H-POWER CORP (HPOW-Non-standard)   KAUFMAN A;  US5523177-A   GINER INC (GINE-Non-standard)   LACONTI A B,  KOSEK J A,  CROPLEY C C;  US5599638-A   UNIV SOUTHERN CALIFORNIA (USCA);  CALIFORNIA INST OF TECHNOLOGY (CALY)   FRANK H A,  NARAYANAN S R,  OLAH G A,  PRAKASH G K S,  SURAMPUDI S,  VAMOS E,  HALPERT G;  US5672439-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  JOHNSON M C,  COLBOW K M,  CAMPBELL S A;  US5773162-A   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  FRANK H A,  NARAYANAN S R,  CHUN W,  JEFFRIES-NAKAMURA B,  KINDLER A,  HALPERT G;  US5795496-A   CALIFORNIA INST OF TECHNOLOGY (CALY)   YEN S S,  NARAYANAN S R,  HALPERT G,  GRAHAM E,  YAVROUIAN A;  US5874182-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  JOHNSON M C,  COLBOW K M,  CAMPBELL S A;  US5945231-A   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  HALPERT G,  NARAYANAN S;  US5992008-A   CALIFORNIA INST OF TECHNOLOGY (CALY)   KINDLER A,  DAWSON S F;  US6074773-A   BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  CAMPBELL S A,  ROBERTS J A;  WO1996012317-A1   ;  EP1133805-B1 -- EP687023-A1   VITO VLAAMSE INSTELLING TECHNOLOGISCH (VITO-Non-standard)   DIRVEN P,  ENGELEN W;  US4229490-A   TEXAS INSTR INC (TEXI)   FRANK S N,  FRANK J G;  US5773162-A   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  FRANK H A,  NARAYANAN S R,  CHUN W,  JEFFRIES-NAKAMURA B,  KINDLER A,  HALPERT G;  WO1996012317-A1