;  US6532792-B2 -- JP60008835-A   ;  US4730479-A   STANDARD OIL CO OHIO (STAH)   PYKE S C,  BOOS D L,  BROUWER M L;  US5066466-A   ;  US6128945-A   ;  WO1987000634-A   ;  EP1111703-A2   BALLARD POWER SYSTEMS INC (BLRD)   REINDL M,  ROESCH T,  MOOS R E,  BIRKHOFER T A,  MUELLER W,  MUELLER R W;  US3498844-A   UNITED AIRCRAFT CORP (UNAC);  US3507702-A   UNITED AIRCRAFT CORP (UNAC);  US3528858-A   GENERAL ELECTRIC CO (GENE);  US3623913-A   ENGELHARD MINERALS & CHEM CORP (ENGH);  US3964930-A   UNITED TECHNOLOGIES CORP (UNAC)   REISER C A;  US3969145-A   UNITED TECHNOLOGIES CORP (UNAC)   GREVSTAD P E,  GELTING R L;  US4117082-A   ;  US4192906-A   ENERGY RES CORP (ENER-Non-standard)   MARU H C;  US4276355-A   WESTINGHOUSE ELECTRIC CORP (WESE)   KOTHMANN R E,  CYPHERS J A;  US4313338-A   ;  US4459577-A   ;  US4469579-A   DIAMOND SHAMROCK CORP (DIAS)   COVITCH M J,  DERESPIRIS D L,  BENEZRA L L,  VAUSS E M;  US4575441-A   ;  US4624137-A   HONEYWELL INC (HONE)   BONNE U,  HIGASHI R E,  JOHNSON R G,  SUMNER J P;  US4658632-A   ;  US4661411-A   DOW CHEM CO (DOWC)   MARTIN C W,  EZZELL B R,  WEAVER J D;  US4701739-A   ;  US4718991-A   ;  US4731226-A   FIGARO ENG INC (FIGA-Non-standard)   TAKAHATA K,  MATSUURA Y;  US4769297-A   INT FUEL CELLS CORP (ITFU)   REISER C A,  SAWYER R D;  US4795536-A   ALLIED-SIGNAL INC (ALLC)   YOUNG P,  POLAK A J;  US4795683-A   UNITED TECHNOLOGIES CORP (UNAC)   MCELROY J F;  US4797185-A   ALLIED-SIGNAL INC (ALLC)   POLAK A J,  PETTYWEEKS S,  PETTY-WEEKS S;  US4801211-A   ;  US4816800-A   ;  US4818637-A   UNITED TECHNOLOGIES CORP (UNAC)   MOLTER T M,  LACONTI A B;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4826742-A   INT FUEL CELLS CORP (ITFU)   REISER C A;  US4827154-A   ;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US4938928-A   FIGARO ENG INC (FIGA-Non-standard)   HIROSHI K,  MUNEHARU S,  KIYONORI O;  US4958513-A   ;  US4988582-A   BELL COMMUNICATIONS (TELF)   DYER C K;  US5006828-A   ;  US5084144-A   PHYSICAL SCIENCES I (PHYS-Non-standard)   VILLAMBIRE N R K,  ANDERSON E B,  TAYLOR E J;  US5132193-A   PHYSICAL SCI INC (PHYS-Non-standard)   REDDY V N R,  TAYLOR E J;  US5242764-A   BCS TECHNOLOGY INC (BCST-Non-standard)   DHAR H P;  US5318863-A   BCS TECHNOLOGY INC (BCST-Non-standard)   DHAR H P;  US5507175-A   ;  US5716506-A   UNIV ILLINOIS FOUND (UNII)   MACLAY G J,  KEYVANI D,  LEE S B;  US5719778-A   NIPPONDENSO CO LTD (NPDE);  DENSO CORP (NPDE)   SUZUMURA T,  ISOMURA S,  MIZOGUCHI T,  YAMASHITA Y,  HASEGAWA J;  US5739416-A   ;  US5759367-A   ;  US5814970-A   FRAUNHOFER GES FOERDERUNG ANGEWANDTEN (FRAU)   SCHMIDT H;  US5821729-A   FRAUNHOFER GES FOERDERUNG ANGEWANDTEN (FRAU)   SCHMIDT H,  JANTSCH M;  US5918261-A   CAPTEUR SENSORS & ANALYSERS LTD (CAPT-Non-standard)   WILLIAMS D E,  PRATT K F E;  US5969231-A   ;  US6001499-A   GENERAL MOTORS CORP (GENK);  UNIV CALIFORNIA (REGC)   NEUTZLER J K,  BORUP R L,  WEISBROD K,  GROT S A,  MELTSER M A,  GUTOWSKI S;  US6030718-A   AVISTA LABS (AVIS-Non-standard);  FUGLEVAND W A (FUGL-Individual)   FUGLEVAND W A,  BAYYUK S I,  LLOYD G A,  DEVRIES P D,  LOTT D R,  SCARTOZZI J P,  SOMERS G M,  STOKES R G;  US6096449-A   AVISTA CORP (AVIS-Non-standard);  FUGLEVAND W A (FUGL-Individual)   FUGLEVAND W A,  DEVRIES P D,  LLOYD G A,  LOTT D R,  SCARTOZZI J P;  US6126311-A   GORDON CO CLAUDE S (GORD-Non-standard)   SCHUH W C;  US6155098-A   ;  US6387556-B1   AVISTA LAB INC (AVIS-Non-standard)   FUGLEVAND W A,  BAYYUK S I,  LLOYD G A,  DEVRIES P D,  LOTT D R,  SCARTOZZI J P