EP1176653-A2 -- DE19815455-A1   ;  EP731520-A1   JOHNSON MATTHEY PLC (JOHO)   DENTON J,  GASCOYNE J M,  THOMPSETT D;  EP736921-A1   JOHNSON MATTHEY PLC (JOHO);  BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B,  HARDS G A,  RALPH T R,  THOMPSETT D;  EP945910-A2   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  FEHL K,  STARZ K,  STENKE U;  JP07296818-A   ;  US5501915-A   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  US2002037449-A1 -- US4229490-A   TEXAS INSTR INC (TEXI)   FRANK S N,  FRANK J G;  US4654104-A   DOW CHEM CO (DOWC)   MCINTYRE J M,  BIRDWELL J D,  SMITH B R;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5234777-A   US DEPT ENERGY (USAT)   WILSON M S;  US5501915-A   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  US5723173-A   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  US5738905-A   DEUT FORSCH LUFT RAUMFAHRT EV (DELF)   BEVERS D;  US5861222-A   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  US6156449-A   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  KARCH R,  FEHL K,  STARZ K;  US7419740-B2 -- CA2280601-A1   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  KARCH R,  FEHL K,  STARZ K;  DE19815455-A1   ;  DE19602629-C2   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  DE19757320-C2   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   HUNKEL D,  MARMANN A,  VOGEL R;  EP945910-A2   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  FEHL K,  STARZ K,  STENKE U;  EP731520-B1   JOHNSON MATTHEY PLC (JOHO)   DENTON J,  GASCOYNE J M,  THOMPSETT D;  EP797265-B1   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  JP07296818-A   ;  JP10270050-A   ;  JP10270055-A   ;  JP10270056-A   ;  JP57019971-A   ;  JP58218771-A   SANYO ELECTRIC CO (SAOL)   KUMETA M,  MATSUOKA K;  JP60230357-A   ;  US4229490-A   TEXAS INSTR INC (TEXI)   FRANK S N,  FRANK J G;  US4654104-A   DOW CHEM CO (DOWC)   MCINTYRE J M,  BIRDWELL J D,  SMITH B R;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5234777-A   US DEPT ENERGY (USAT)   WILSON M S;  US5501915-A   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  US5723173-A   MATSUSHITA ELEC IND CO LTD (MATU)   FUKUOKA Y,  UCHIDA M,  EDA N;  US5738905-A   DEUT FORSCH LUFT RAUMFAHRT EV (DELF)   BEVERS D;  US5861222-A   DEGUSSA AG (DEGS)   FISCHER A,  WENDT H,  ZUBER R;  US6156449-A   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  KARCH R,  FEHL K,  STARZ K;  EP1176653-B1 -- DE19815455-A1   ;  EP731520-A1   JOHNSON MATTHEY PLC (JOHO)   DENTON J,  GASCOYNE J M,  THOMPSETT D;  EP736921-A1   JOHNSON MATTHEY PLC (JOHO);  BALLARD POWER SYSTEMS INC (BLRD)   WILKINSON D P,  VOSS H H,  PRATER K B,  HARDS G A,  RALPH T R,  THOMPSETT D;  EP945910-A2   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  FEHL K,  STARZ K,  STENKE U;  US5501915-A   JOHNSON MATTHEY PLC (JOHO)   HARDS G A,  RALPH T R;  JP5134744-B2 -- JP04012458-A   ;  JP08203537-A   ;  JP09027326-A   ;  JP10270056-A   ;  JP11329452-A   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  FEHL K,  STARZ K,  STENKE U;  JP61067787-A   ;  JP62168545-A   ;  JP2000067873-A   DEGUSSA-HUELS AG (DEGS)   ZUBER R,  KARCH R,  FEHL K,  STARZ K;  JP05507583-W