WO200115254-A2 -- EP47595-A   IMI MARSTON LTD (MASC)   HAYFIELD P C S;  EP450849-A   JOHNSON MATTHEY PLC (JOHO)   BUCHANAN J S,  HARDS G A,  KECK L;  EP827225-A2   NE CHEMCAT CORP (NECH-Non-standard)   ITOH T,  KATOH K,  HASHIMOTO T;  EP450849-A3   JOHNSON MATTHEY PLC (JOHO)   BUCHANAN J S,  HARDS G A,  KECK L;  US4454169-A   DIAMOND SHAMROCK CORP (DIAS);  HINDEN J (HIND-Individual)   HINDEN J,  KATZ M,  GAUGER J;  US4716087-A   NIPPON ENGELHARD KK (ENGH)   ITO T,  MATSUZAWA S,  KATO K;  WO1999053557-A1   ;  US2004157110-A1 -- US4131721-A   ELECTRIC POWER RES INST INC (ELPO)   FUNG S C,  PAN Y C;  US4454169-A   DIAMOND SHAMROCK CORP (DIAS);  HINDEN J (HIND-Individual)   HINDEN J,  KATZ M,  GAUGER J;  US4716087-A   NIPPON ENGELHARD KK (ENGH)   ITO T,  MATSUZAWA S,  KATO K;  US4810594-A   INT FUEL CELLS CORP (ITFU)   BREGOLI L J,  LUCZAK F J;  US5096560-A   MITSUBISHI PETROCHEMICAL CO LTD (MITP)   TAKAI N,  KAGEYAMA Y,  SAWADA Y,  YOSHIDA A;  US5277996-A   MARCHETTI G A (MARC-Individual);  LOEWE W R (LOEW-Individual)   MARCHETTI G A,  LOEWE W R;  US5489563-A   DEGUSSA AG (DEGS)   BRAND R,  FREUND A,  LANG J,  LEHMANN T,  OHMER J,  TACKE T,  HEINZ G,  SCHWARZ R;  US5681435-A   CERAMATEC INC (CERA-Non-standard)   JOSHI A V,  GORDON J H;  US5871860-A   JOHNSON MATTHEY PLC (JOHO)   FROST J C,  GASCOYNE J M,  HARDS G A;  US5904832-A   HURON TECH CANADA INC (HURO-Non-standard)   ROGERS D J,  DONG D F,  MUMBY T A,  CLIFFORD A L;  US6007934-A   DEGUSSA AG (DEGS)   AUER E,  FREUND A,  LEHMANN T,  STARZ K,  SCHWARZ R,  STENKE U;  US6165635-A   DEGUSSA-HUELS AG (DEGS)   AUER E,  GERHARD H,  LEHMANN T,  SCHWARZ R,  STARZ K;  US2009053575-A1 -- US4131721-A   ELECTRIC POWER RES INST INC (ELPO)   FUNG S C,  PAN Y C;  US4454169-A   DIAMOND SHAMROCK CORP (DIAS);  HINDEN J (HIND-Individual)   HINDEN J,  KATZ M,  GAUGER J;  US4716087-A   NIPPON ENGELHARD KK (ENGH)   ITO T,  MATSUZAWA S,  KATO K;  US4810594-A   INT FUEL CELLS CORP (ITFU)   BREGOLI L J,  LUCZAK F J;  US5096560-A   MITSUBISHI PETROCHEMICAL CO LTD (MITP)   TAKAI N,  KAGEYAMA Y,  SAWADA Y,  YOSHIDA A;  US5277996-A   MARCHETTI G A (MARC-Individual);  LOEWE W R (LOEW-Individual)   MARCHETTI G A,  LOEWE W R;  US5352835-A   TEXACO CHEM CO (TEXC)   NEFF L D,  DAI P E,  RENKEN T L;  US5489563-A   DEGUSSA AG (DEGS)   BRAND R,  FREUND A,  LANG J,  LEHMANN T,  OHMER J,  TACKE T,  HEINZ G,  SCHWARZ R;  US5681435-A   CERAMATEC INC (CERA-Non-standard)   JOSHI A V,  GORDON J H;  US5804613-A   AMCOL INT CORP (MNER)   BEALL G W,  TSIPURSKY S,  SOROKIN A,  GOLDMAN A;  US5871860-A   JOHNSON MATTHEY PLC (JOHO)   FROST J C,  GASCOYNE J M,  HARDS G A;  US5904832-A   HURON TECH CANADA INC (HURO-Non-standard)   ROGERS D J,  DONG D F,  MUMBY T A,  CLIFFORD A L;  US6007934-A   DEGUSSA AG (DEGS)   AUER E,  FREUND A,  LEHMANN T,  STARZ K,  SCHWARZ R,  STENKE U;  US6165635-A   DEGUSSA-HUELS AG (DEGS)   AUER E,  GERHARD H,  LEHMANN T,  SCHWARZ R,  STARZ K;  WO200115254-A3 -- EP47595-A   IMI MARSTON LTD (MASC)   HAYFIELD P C S;  EP827225-A2   NE CHEMCAT CORP (NECH-Non-standard)   ITOH T,  KATOH K,  HASHIMOTO T;  EP450849-A3   JOHNSON MATTHEY PLC (JOHO)   BUCHANAN J S,  HARDS G A,  KECK L;  US4454169-A   DIAMOND SHAMROCK CORP (DIAS);  HINDEN J (HIND-Individual)   HINDEN J,  KATZ M,  GAUGER J;  US4716087-A   NIPPON ENGELHARD KK (ENGH)   ITO T,  MATSUZAWA S,  KATO K;  WO1999053557-A1