US2005047978-A1 -- US4293315-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4642272-A   INTER FUEL CELLS CO (ITFU-Non-standard)   SEDERQUIST R A;  US4659634-A   STRUTHERS R C (STRU-Individual)   STRUTHERS R C;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US4816353-A   INT FUEL CELLS CORP (ITFU);  US5271916-A   GENERAL MOTORS CORP (GENK)   GUANTE J,  VANDERBORGH N E,  NGUYEN T V;  US5366820-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US5484577-A   BALLARD POWER SYSTEM INC (BLRD)   LEAVITT S L,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US6077620-A   GENERAL MOTORS CORP (GENK)   PETTIT W H;  US20010014414-A1   ;  US20010018141-A1   ;  US20030027024-A1   ;  US20030093949-A1   ;  US6238815-B1   GENERAL MOTORS CORP (GENK)   SKALA G W,  HART-PREDMORE D J,  PETTIT W H,  BORUP R L;  US6331366-B1   INT FUEL CELLS LLC (ITFU)   VAN DINE L L,  GRASSO A P;  US6436561-B1   GENERAL MOTORS CORP (GENK)   HART-PREDMORE D J,  PETTIT W H;  US7442461-B2 -- US5366820-A   SANYO ELECTRIC CO (SAOL)   TSUTSUMI M,  NISHIZAWA N,  ITOH T,  MATSUBAYASHI T,  YONESAKI T,  SATOH K,  FURUKAWA A,  YONEZU I,  FUJITANI S,  NASAKO K,  SAITO T,  SATO K;  US6331366-B1   INT FUEL CELLS LLC (ITFU)   VAN DINE L L,  GRASSO A P;  US4293315-A   UNITED TECHNOLOGIES CORP (UNAC)   SEDERQUIST R A;  US4642272-A   INTER FUEL CELLS CO (ITFU-Non-standard)   SEDERQUIST R A;  US4650727-A   US DEPT ENERGY (USAT)   VANDERBORG N E,  SPRINGER T E,  HUFF R;  US4659634-A   STRUTHERS R C (STRU-Individual)   STRUTHERS R C;  US4670359-A   ENGELHARD MINERALS CORP (ENGH)   BESHTY B S,  WHELAN J A;  US4816353-A   INT FUEL CELLS CORP (ITFU);  US5271916-A   GENERAL MOTORS CORP (GENK)   GUANTE J,  VANDERBORGH N E,  NGUYEN T V;  US5484577-A   BALLARD POWER SYSTEM INC (BLRD)   LEAVITT S L,  WATKINS D S,  COHEN R,  BUSWELL R F,  CLAUSI J V;  US6077620-A   GENERAL MOTORS CORP (GENK)   PETTIT W H;  US20010014414-A1   ;  US20010018141-A1   ;  US20030027024-A1   ;  US20030093949-A1   ;  US6238815-B1   GENERAL MOTORS CORP (GENK)   SKALA G W,  HART-PREDMORE D J,  PETTIT W H,  BORUP R L;  US6436561-B1   GENERAL MOTORS CORP (GENK)   HART-PREDMORE D J,  PETTIT W H;  WO1998008771-A2