WO9822989-A1 -- US3423228-A   ;  EP948827-A1 -- EP629013-A2   DAIMLER-BENZ AG (DAIM)   FLECK W;  EP716463-A2   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  EP629013-B2   DAIMLER-BENZ AG (DAIM)   FLECK W;  EP716463-B9   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  US4419209-A   DORR OLIVER INC (DORO)   KLINKOWSKI P R;  US4596858-A   GREGOR H P (GREG-Individual)   GREGOR P P,  SAMUELSEN E,  DALVEN P I,  GREGOR C D;  WO1996029752-A1   ;  AU729900-B -- US3423228-A   ;  US5523177-A   GINER INC (GINE-Non-standard)   LACONTI A B,  KOSEK J A,  CROPLEY C C;  US6444343-B1 -- EP629013-A2   DAIMLER-BENZ AG (DAIM)   FLECK W;  EP716463-A2   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  US3423228-A   ;  US4419209-A   DORR OLIVER INC (DORO)   KLINKOWSKI P R;  US4537840-A   HITACHI LTD (HITA)   TSUKUI T,  SHIMIZU T,  DOI R,  TSUTSUMII Y;  US4596858-A   GREGOR H P (GREG-Individual)   GREGOR P P,  SAMUELSEN E,  DALVEN P I,  GREGOR C D;  US4605685-A   CHLORINE ENGINEERS CORP LTD (CHLR)   MOMOSE T,  TOMIIE K,  HARADA H,  MIYACHI H,  KATO H;  US4729930-A   INT FUEL CELLS CORP (ITFU)   BEAL D W,  SCHEFFLER G W;  US5049275-A   HOECHST CELANESE CORP (FARH)   GILLBERGLA G E,  GABRIEL E M,  GILLBERG-LAFORCE G E;  US5260143-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WATKINS D S;  US5460896-A   EQUOS RES KK (EQUS)   TAKADA C;  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;  US5599640-A   KOREA ADV INST SCI & TECHNOLOGY (KOAD)   KIM D M,  LEE J H,  LEE H H,  LEE J Y;  US5643689-A   ECR-ELECTRO-CHEM RES LTD (ECRE-Non-standard)   FLEISCHER N A,  MANASSEN J,  DAREN S;  US5645950-A   DAIMLER-BENZ AG (DAIM)   FLECK W;  US5679482-A   DAIS CORP (DAIS-Non-standard)   RIDER J N,  WNEK G E,  EHRENBERG S G,  SERPICO J M;  US5834523-A   BALLARD POWER SYSTEMS INC (BLRD)   STECK A E,  STONE C;  US5919583-A   DU PONT DE NEMOURS & CO E I (DUPO)   GROT W G,  RAJENDRAN G;  EP1956673-A1 -- EP629013-A2   DAIMLER-BENZ AG (DAIM)   FLECK W;  EP716463-A2   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  EP629013-B2   DAIMLER-BENZ AG (DAIM)   FLECK W;  EP716463-B9   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  US2913511-A   ;  US3341366-A   GENERAL ELECTRIC CO (GENE);  US4729930-A   INT FUEL CELLS CORP (ITFU)   BEAL D W,  SCHEFFLER G W;  US5171644-A   DOW CHEM CO (DOWC)   TSOU Y M,  EISMAN G A,  DOOR R D;  US5599640-A   KOREA ADV INST SCI & TECHNOLOGY (KOAD)   KIM D M,  LEE J H,  LEE H H,  LEE J Y;  WO1996012317-A1   ;  JP4231110-B2 -- JP01022932-A   ;  JP07296634-A   ;  JP08185881-A   ;  JP63037134-A   ;  US3423228-A   ;  EP1956673-B1 -- EP629013-A2   DAIMLER-BENZ AG (DAIM)   FLECK W;  EP716463-A2   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  US4729930-A   INT FUEL CELLS CORP (ITFU)   BEAL D W,  SCHEFFLER G W;  US5171644-A   DOW CHEM CO (DOWC)   TSOU Y M,  EISMAN G A,  DOOR R D;  US5599640-A   KOREA ADV INST SCI & TECHNOLOGY (KOAD)   KIM D M,  LEE J H,  LEE H H,  LEE J Y;  WO1996012317-A1