;  EP1279431-A1 -- EP796647-A1   MITSUBISHI JUKOGYO KK (MITO)   OGAWA W,  KOBAYASHI T,  SUEDA N,  MATSUMOTO T,  IMAI T,  SHIROGANE S,  SHIOTA H,  UCHIDA T;  US5645626-A   BEND RES INC (BEND-Non-standard)   EDLUND D J,  FROST C B,  NEWBOLD D D;  US5997594-A   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  WO2000031816-A1   ;  WO2001070376-A1   ;  US6660069-B2 -- EP796647-A1   MITSUBISHI JUKOGYO KK (MITO)   OGAWA W,  KOBAYASHI T,  SUEDA N,  MATSUMOTO T,  IMAI T,  SHIROGANE S,  SHIOTA H,  UCHIDA T;  JP06345408-A   ;  JP11276866-A   ;  US2824620-A   ;  US3447288-A   ;  US4810485-A   INST GAS TECHNOLOGY (IGTE)   MARIANOWSK L G,  FLEMING D K;  US5225080-A   SEITZ-FILTER-W SEIT (SEIW)   KARBACHSCH M,  STROHM G,  KAUL W,  HEPP W,  RADMACHER H;  US5393325-A   BEND RES INC (BEND-Non-standard)   EDLUND D J;  US5645626-A   BEND RES INC (BEND-Non-standard)   EDLUND D J,  FROST C B,  NEWBOLD D D;  US5782960-A   MITSUBISHI JUKOGYO KK (MITO)   OGAWA W,  KOBAYASHI T,  SUEDA N,  MATSUMOTO T,  IMAI T,  SHIROGANE S,  SHIOTA H,  UCHIDA T;  US5904754-A   JUDA ASSOC WALTER (JUDA-Non-standard)   BOMBARD R T,  JUDA W,  KRUEGER C W;  US5997594-A   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  US6171574-B1   JUDA ASSOC INC WALTER (JUDA-Non-standard)   JUDA W,  KRUEGER C W;  US6319306-B1   IDATECH LLC (BLRD)   EDLUND D J,  PLEDGER W A,  STUDEBAKER T;  WO2000027507-A1   ;  WO2000031816-A1   ;  WO2001028662-A1   ;  WO2001070376-A1   ;  WO2001083086-A1   ;  EP1279431-B1 -- EP796647-A1   MITSUBISHI JUKOGYO KK (MITO)   OGAWA W,  KOBAYASHI T,  SUEDA N,  MATSUMOTO T,  IMAI T,  SHIROGANE S,  SHIOTA H,  UCHIDA T;  US5645626-A   BEND RES INC (BEND-Non-standard)   EDLUND D J,  FROST C B,  NEWBOLD D D;  US5997594-A   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  WO2000031816-A1   ;  WO2001070376-A1   ;  JP4806867-B2 -- JP01027620-A   ;  JP06111838-A   ;  JP08073201-A   ;  JP2000247605-A   TOKYO GAS CO LTD (TOLG)   SEKI T,  YASUDA I,  ITO S,  AKASHI K;  JP2001170460-A   ;  JP2003527279-A   IDATECH LLC (BLRD)   EDLUND D J,  PLEDGER W A,  STUDEBAKER T;  WO1999046032-A2   ;  JP4904651-B2 -- JP01027620-A   ;  JP06345408-A   ;  JP07185277-A   ;  JP08073201-A   ;  JP08215547-A   ;  JP09248416-A   ;  JP09255306-A   ;  JP11276866-A   ;  JP2000093767-A   HERAEUS GMBH & CO KG W C (HERA)   BAAKE R,  LUPTON D F;  JP2001025629-A   NISSAN MOTOR CO LTD (NSMO)   YAGI Y;  WO2001070376-A1