WO2003023884-A2 -- EP837238-A2   ;  EP1158590-A2   XCELLSIS GMBH (XCEL-Non-standard)   SOHMER P;  EP1162354-A2   FILTERWERK MANN & HUMMEL GMBH (FILW)   FUESSER R;  EP1195830-A2   NISSAN MOTOR CO LTD (NSMO)   ARAMAKI K;  JP09026177-A   ;  US5401589-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  US5792247-A   DONALDSON CO INC (DOND)   GILLINGHAM G R,  RISCH D T,  TOKAR J C,  WAGNER W M,  MATTHYS B A,  STEINBRUECK E A;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US20010049036-A1   ;  WO2002084099-A1   ;  US2003064271-A1 -- US3847672-A   UNITED AIRCRAFT CORP (UNAC);  US4080791-A   EXXON RES & ENG CO (ESSO)   NADLER M,  CAHN R P;  US4595642-A   MITSUBISHI HEAVY IND CO LTD (MITO)   NAKANISHI K,  TANABE S,  IZUMI J;  US4737173-A   AMWAY CORP (AMWA-Non-standard)   KUDIRKA P J,  HAMILTON R W,  GROCHOSKI G T;  US5013617-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W;  US5156925-A   ALCAN INT LTD (ALCN)   LAPP S P;  US5189092-A   KOSLOW TECHN CORP (KOSL-Non-standard)   KOSLOW E E;  US5221586-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI);  TOKYO GAS CO LTD (TOLG);  OSAKA GAS CO LTD (OSAG);  TOHO GAS KK (TOHG)   MORIMOTO H,  HATO,  HATORI S,  KOBAYASHI K,  UEMATSU H,  HIKITA T,  SHINOZAKI K,  NAKAGAWA S;  US5331037-A   KOSLOW TECHN CORP (KOSL-Non-standard)   KOSLOW E E;  US5366821-A   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  US5372617-A   CHARLES STARK DRAPER LAB INC (DRAS)   KERREBROCK P A,  WAYNE A S;  US5401589-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  US5458095-A   ENERGY REDUCTIONS SYSTEMS INC (ENER-Non-standard)   LITTLEFIELD D C,  POST D R;  US5626820-A   KINKEAD D A (KINK-Individual);  REZUKE R W (REZU-Individual);  HIGLEY J K (HIGL-Individual)   REZUKE R W,  KINKEAD D A,  HIGLEY J K;  US5641031-A   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  US5646852-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5662184-A   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  US5792247-A   DONALDSON CO INC (DOND)   GILLINGHAM G R,  RISCH D T,  TOKAR J C,  WAGNER W M,  MATTHYS B A,  STEINBRUECK E A;  US5794732-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5837393-A   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  US5944878-A   LINDHE KONSULT & FOERVALTNINGS AB CURT (LIND-Non-standard)   LINDHE C;  US5981096-A   DAIMLER-BENZ AG (DAIM)   LAMM A,  URBAN P,  HORNBURG G;  US6007930-A   FORD GLOBAL TECHNOLOGIES INC (FORD)   ADAMS J A,  SULEK M S,  SALOKA G S;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6057051-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   UCHIDA M,  FUKUOKA Y,  SUGAWARA Y,  EDA N;  US6074769-A   BINSMAIER H (BINS-Individual)   JOHNSSEN W G;  US6124052-A   TOYODA JIDOSHOKKI SEISAKUSHO KK (TOYX)   KATOH H,  KUBO H,  FUJII T;  US6152996-A   AIR-MAZE CORP (AIRM-Non-standard)   LINNERSTEN S B,  FLEMMING R J;  US20010049036-A1   ;  US6190432-B1   DONALDSON CO INC (DOND)   GIESEKE S S,  FINNERTY C J;  US6284397-B1   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H;  US6296957-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   GRAAGE K;  US6309769-B1   PLUG POWER INC (PLUG-Non-standard)   HAUG A T;  US6316134-B1   BALLARD GENERATION SYSTEMS INC (BALL-Non-standard)   COWNDEN R,  EICHE M,  LOUIE C R,  WATKINS D S;  US6420059-B1   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  FRANK H A,  NARAYANAN S R,  CHUN W,  JEFFRIES-NAKAMURA B,  KINDLER A,  HALPERT G;  US6432177-B1   DONALDSON CO INC (DOND)   DALLAS A J,  GOGINS M A,  GRAHAM K M,  ADAMEK D E,  SKUSTER R;  US6436562-B1   EMPRISE TECHNOLOGY ASSOC CORP (EMPR-Non-standard)   DUBOSE R A;  US6780534-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6783881-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6783882-B2   BALL AEROSPACE & TECHNOLOGIES CORP (BALL-Non-standard)   SCHMIDT J A;  US6797027-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6951697-B2 -- EP677417-A1   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  EP837238-A2   ;  EP1158590-A2   XCELLSIS GMBH (XCEL-Non-standard)   SOHMER P;  EP1162354-A2   FILTERWERK MANN & HUMMEL GMBH (FILW)   FUESSER R;  EP1195830-A2   NISSAN MOTOR CO LTD (NSMO)   ARAMAKI K;  GB2250130-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  JP09026177-A   ;  US3847672-A   UNITED AIRCRAFT CORP (UNAC);  US4080791-A   EXXON RES & ENG CO (ESSO)   NADLER M,  CAHN R P;  US4595642-A   MITSUBISHI HEAVY IND CO LTD (MITO)   NAKANISHI K,  TANABE S,  IZUMI J;  US4737173-A   AMWAY CORP (AMWA-Non-standard)   KUDIRKA P J,  HAMILTON R W,  GROCHOSKI G T;  US5013617-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W;  US5156925-A   ALCAN INT LTD (ALCN)   LAPP S P;  US5189092-A   KOSLOW TECHN CORP (KOSL-Non-standard)   KOSLOW E E;  US5221586-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI);  TOKYO GAS CO LTD (TOLG);  OSAKA GAS CO LTD (OSAG);  TOHO GAS KK (TOHG)   MORIMOTO H,  HATO,  HATORI S,  KOBAYASHI K,  UEMATSU H,  HIKITA T,  SHINOZAKI K,  NAKAGAWA S;  US5331037-A   KOSLOW TECHN CORP (KOSL-Non-standard)   KOSLOW E E;  US5366821-A   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  US5372617-A   CHARLES STARK DRAPER LAB INC (DRAS)   KERREBROCK P A,  WAYNE A S;  US5401589-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  US5458095-A   ENERGY REDUCTIONS SYSTEMS INC (ENER-Non-standard)   LITTLEFIELD D C,  POST D R;  US5626820-A   KINKEAD D A (KINK-Individual);  REZUKE R W (REZU-Individual);  HIGLEY J K (HIGL-Individual)   REZUKE R W,  KINKEAD D A,  HIGLEY J K;  US5641031-A   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  US5646852-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5662184-A   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  US5792247-A   DONALDSON CO INC (DOND)   GILLINGHAM G R,  RISCH D T,  TOKAR J C,  WAGNER W M,  MATTHYS B A,  STEINBRUECK E A;  US5794732-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5837393-A   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  US5944878-A   LINDHE KONSULT & FOERVALTNINGS AB CURT (LIND-Non-standard)   LINDHE C;  US5981096-A   DAIMLER-BENZ AG (DAIM)   LAMM A,  URBAN P,  HORNBURG G;  US6007930-A   FORD GLOBAL TECHNOLOGIES INC (FORD)   ADAMS J A,  SULEK M S,  SALOKA G S;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6057051-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   UCHIDA M,  FUKUOKA Y,  SUGAWARA Y,  EDA N;  US6074769-A   BINSMAIER H (BINS-Individual)   JOHNSSEN W G;  US6124052-A   TOYODA JIDOSHOKKI SEISAKUSHO KK (TOYX)   KATOH H,  KUBO H,  FUJII T;  US6152996-A   AIR-MAZE CORP (AIRM-Non-standard)   LINNERSTEN S B,  FLEMMING R J;  US20010049036-A1   ;  US6190432-B1   DONALDSON CO INC (DOND)   GIESEKE S S,  FINNERTY C J;  US6284397-B1   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H;  US6296957-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   GRAAGE K;  US6309769-B1   PLUG POWER INC (PLUG-Non-standard)   HAUG A T;  US6316134-B1   BALLARD GENERATION SYSTEMS INC (BALL-Non-standard)   COWNDEN R,  EICHE M,  LOUIE C R,  WATKINS D S;  US6420059-B1   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  FRANK H A,  NARAYANAN S R,  CHUN W,  JEFFRIES-NAKAMURA B,  KINDLER A,  HALPERT G;  US6432177-B1   DONALDSON CO INC (DOND)   DALLAS A J,  GOGINS M A,  GRAHAM K M,  ADAMEK D E,  SKUSTER R;  US6436562-B1   EMPRISE TECHNOLOGY ASSOC CORP (EMPR-Non-standard)   DUBOSE R A;  US6780534-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6783881-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6783882-B2   BALL AEROSPACE & TECHNOLOGIES CORP (BALL-Non-standard)   SCHMIDT J A;  US6797027-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  WO2001048850-A1   ;  WO2002084099-A1   ;  WO2002027835-A2   ;  US2005262818-A1 -- US3404731-A   ;  US3847672-A   UNITED AIRCRAFT CORP (UNAC);  US4080791-A   EXXON RES & ENG CO (ESSO)   NADLER M,  CAHN R P;  US4595642-A   MITSUBISHI HEAVY IND CO LTD (MITO)   NAKANISHI K,  TANABE S,  IZUMI J;  US4737173-A   AMWAY CORP (AMWA-Non-standard)   KUDIRKA P J,  HAMILTON R W,  GROCHOSKI G T;  US5013617-A   INT FUEL CELLS CORP (ITFU)   SCHEFFLER G W;  US5156925-A   ALCAN INT LTD (ALCN)   LAPP S P;  US5189092-A   KOSLOW TECHN CORP (KOSL-Non-standard)   KOSLOW E E;  US5221586-A   ISHIKAWAJIMA HARIMA JUKOGYO KK (ISHI);  TOKYO GAS CO LTD (TOLG);  OSAKA GAS CO LTD (OSAG);  TOHO GAS KK (TOHG)   MORIMOTO H,  HATO,  HATORI S,  KOBAYASHI K,  UEMATSU H,  HIKITA T,  SHINOZAKI K,  NAKAGAWA S;  US5320654-A   KOMATSU SEISAKUSHO KK (KOMS)   MINAMI T;  US5331037-A   KOSLOW TECHN CORP (KOSL-Non-standard)   KOSLOW E E;  US5366821-A   BALLARD POWER SYSTEMS INC (BLRD)   MERRITT R D,  BLAIR J D;  US5372617-A   CHARLES STARK DRAPER LAB INC (DRAS)   KERREBROCK P A,  WAYNE A S;  US5401589-A   VICKERS SHIPBUILDING & ENG (VICS);  CJBD LTD (CJBD-Non-standard)   PALMER I,  SEYMOUR C M,  DAMS R A J;  US5458095-A   ENERGY REDUCTIONS SYSTEMS INC (ENER-Non-standard)   LITTLEFIELD D C,  POST D R;  US5626820-A   KINKEAD D A (KINK-Individual);  REZUKE R W (REZU-Individual);  HIGLEY J K (HIGL-Individual)   REZUKE R W,  KINKEAD D A,  HIGLEY J K;  US5641031-A   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  US5646852-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5662184-A   DAIMLER-BENZ AG (DAIM)   RIEMER B,  KLAIBER T;  US5792247-A   DONALDSON CO INC (DOND)   GILLINGHAM G R,  RISCH D T,  TOKAR J C,  WAGNER W M,  MATTHYS B A,  STEINBRUECK E A;  US5794732-A   DAIMLER-BENZ AG (DAIM)   LORENZ H,  NOREIKAT K,  KLAIBER T,  FLECK W,  SONNTAG J,  HORNBURG G,  GAULHOFER A;  US5837393-A   HONDA GIKEN KOGYO KK (HOND)   OKAMOTO T;  US5944878-A   LINDHE KONSULT & FOERVALTNINGS AB CURT (LIND-Non-standard)   LINDHE C;  US5981096-A   DAIMLER-BENZ AG (DAIM)   LAMM A,  URBAN P,  HORNBURG G;  US6007930-A   FORD GLOBAL TECHNOLOGIES INC (FORD)   ADAMS J A,  SULEK M S,  SALOKA G S;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6057051-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   UCHIDA M,  FUKUOKA Y,  SUGAWARA Y,  EDA N;  US6074769-A   BINSMAIER H (BINS-Individual)   JOHNSSEN W G;  US6124052-A   TOYODA JIDOSHOKKI SEISAKUSHO KK (TOYX)   KATOH H,  KUBO H,  FUJII T;  US6152996-A   AIR-MAZE CORP (AIRM-Non-standard)   LINNERSTEN S B,  FLEMMING R J;  US20010049036-A1   ;  US6171718-B1   INT FUEL CELLS LLC (ITFU)   MURACH B L,  VAN DINE L L;  US6190432-B1   DONALDSON CO INC (DOND)   GIESEKE S S,  FINNERTY C J;  US6284397-B1   BALLARD POWER SYSTEMS INC (BLRD)   BARTON R H;  US6296957-B1   DBB FUEL CELL ENGINES GMBH (DBBF-Non-standard)   GRAAGE K;  US6309769-B1   PLUG POWER INC (PLUG-Non-standard)   HAUG A T;  US6316134-B1   BALLARD GENERATION SYSTEMS INC (BALL-Non-standard)   COWNDEN R,  EICHE M,  LOUIE C R,  WATKINS D S;  US6420059-B1   CALIFORNIA INST OF TECHNOLOGY (CALY)   SURAMPUDI S,  FRANK H A,  NARAYANAN S R,  CHUN W,  JEFFRIES-NAKAMURA B,  KINDLER A,  HALPERT G;  US6432177-B1   DONALDSON CO INC (DOND)   DALLAS A J,  GOGINS M A,  GRAHAM K M,  ADAMEK D E,  SKUSTER R;  US6436562-B1   EMPRISE TECHNOLOGY ASSOC CORP (EMPR-Non-standard)   DUBOSE R A;  US6780534-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6783881-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T;  US6783882-B2   BALL AEROSPACE & TECHNOLOGIES CORP (BALL-Non-standard)   SCHMIDT J A;  US6797027-B2   DONALDSON CO INC (DOND)   STENERSEN E,  NYMAN W M,  CANEPA R T