;  US6730426-B2 -- EP933826-A1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   UCHIDA M,  FUKUOKA Y,  SUGAWARA Y,  OHARA H,  EDA N;  EP918362-A2   TOYOTA JIDOSHA KK (TOYT)   MIZUNO S;  JP07065847-A   ;  JP200077084   ;  US4001042-A   UNITED TECHNOLOGIES CORP (UNAC);  S T POWERCELL AB (STPO-Non-standard)   TROCCIOLA J C,  ELMORE D E,  STOSAK R J;  US4588661-A   ENGELHARD CORP (ENGH)   KAUFMAN A,  WERTH J;  US4826741-A   ERGENICS POWER SYST (ERGE-Non-standard)   ALDHART O J,  ROSSO M J;  US4929517-A   INT FUEL CELLS CORP (ITFU)   LUOMA W L,  MARTIN R G,  BREAULT R D;  US5096786-A   WESTINGHOUSE ELECTRIC CORP (WESE)   GRANATA S J,  WOODE B M,  DUNYAK T J;  US5176966-A   BALLARD POWER SYSTEMS INC (BLRD)   EPP D G,  WIENS B I;  US5187025-A   ANALYTIC POWER CORP (ANAL-Non-standard)   KELLAND J W,  BRAUN S G;  US5270132-A   INT FUEL CELLS CORP (ITFU)   SAWYER R D,  BREAULT R D,  MIENTEK A P;  US5342706-A   INST GAS TECHNOLOGY (IGTE)   PETRI R J,  MARIANOWSKI L G;  US5464453-A   PINNACLE RES INST INC (PINN-Non-standard)   TSAI K C,  TONG R R,  POPLETT J M,  MCEWEN A B,  MASON G E,  GOODWIN M L,  ANDERSON R L,  NELSON J P,  CROMACK D;  US5523175-A   INT FUEL CELLS INC (ITFU)   BEAL D,  MARTIN R G,  GORMAN M E;  US5534362-A   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T,  BABA I,  KAWAGOE N,  TANAKA M,  KATO H;  US5837395-A   INT FUEL CELLS CORP (ITFU)   BREAULT R D,  FREDLEY R R,  SCHEFFLER G W;  US5912088-A   PLUG POWER LLC (PLUG-Non-standard)   ERNST W D;  US5942347-A   INST GAS TECHNOLOGY (IGTE)   KONCAR G J,  MARIANOWSKI L G;  US5980977-A   PINNACLE RES INST INC (PINN-Non-standard)   DENG C Z,  TSAI K,  GHANTOS D;  US6020083-A   INT FUEL CELLS LLC (ITFU)   BREAULT R D,  KRASIJ M;  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;  US6040072-A   LYNNTECH INC (LYNN-Non-standard)   MURPHY O J,  SALINAS C,  CISAR A J;  US6057054-A   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H,  GIBB P R,  RONNE J A,  VOSS H H;  US6066409-A   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H,  GIBB P R,  RONNE J A,  VOSS H H;  US6153326-A   AISIN TAKAOKA KK (AISN);  MITSUBISHI PLASTICS IND LTD (MISD)   MATSUKAWA M,  FUJIMI Y,  TSUNEKAWA T,  YAMAGUCHI E;  US20020094464-A1   ;  US6444344-B1   NISSHINBO IND INC (NISN)   SAITO K,  HAGIWARA A