US2005274347-A1 -- US4212659-A   FIAT VEICOLI IND SPA (FIAT)   MAGRINI G;  US4699639-A   DONALDSON CO INC (DOND)   GIESEKE S S,  ENGEL D F;  US5034036-A   NAVISTAR INT TRANSP (INTH)   CREEK D M,  PRINE R A;  US5755842-A   AIR-MAZE CORP (AIRM-Non-standard)   PATEL J U,  GIELINK R J;  US20040031248-A1   ;  US6368386-B1   DONALDSON CO INC (DOND)   NELSON B K,  GOGINS M A;  US6422197-B1   FILTERWERK MANN & HUMMEL GMBH (FILW)   SPANNBAUER H,  POLIFKE M,  AMANN M;  US6423108-B1   FILTERWERK MANN & HUMMEL GMBH (FILW)   MUELLER H;  US6485854-B1   GENERAL MOTORS CORP (GENK)   GROVER T T,  FORTE J R;  US6497971-B1   INT FUEL CELLS LLC (ITFU)   REISER C A;  US6521008-B1   BOSCH GMBH ROBERT (BOSC)   LENZING T,  KONZELMANN U,  GUENTHER W;  US6551389-B2   FILTERWERK MANN & HUMMEL GMBH (FILW)   SPANNBAUER H,  FREISINGER J;  US6638339-B2   DONALDSON CO INC (DOND)   DALLAS A J,  GOGINS M A,  GRAHAM K M,  ADAMEK D E,  SKUSTER R;  GB2415228-A -- DE10218673-A1   ;  GB417811-A   ;  GB2011273-A   FIAT VEICOLI IND SPA (FIAT)   MAGRINI G;  JP2003013816-A   ;  US5034036-A   NAVISTAR INT TRANSP (INTH)   CREEK D M,  PRINE R A;  US5794733-A   VOLVO GM HEAVY TRUCK CORP (VOLV)   PALENCHAR T J,  STOSEL D E;  US20020100405-A1   ;  US20030010212-A1   ;  WO2002084099-A1   ;  US7069893-B2 -- US4212659-A   FIAT VEICOLI IND SPA (FIAT)   MAGRINI G;  US4699639-A   DONALDSON CO INC (DOND)   GIESEKE S S,  ENGEL D F;  US5034036-A   NAVISTAR INT TRANSP (INTH)   CREEK D M,  PRINE R A;  US5755842-A   AIR-MAZE CORP (AIRM-Non-standard)   PATEL J U,  GIELINK R J;  US20040031248-A1   ;  US6368386-B1   DONALDSON CO INC (DOND)   NELSON B K,  GOGINS M A;  US6422197-B1   FILTERWERK MANN & HUMMEL GMBH (FILW)   SPANNBAUER H,  POLIFKE M,  AMANN M;  US6423108-B1   FILTERWERK MANN & HUMMEL GMBH (FILW)   MUELLER H;  US6485854-B1   GENERAL MOTORS CORP (GENK)   GROVER T T,  FORTE J R;  US6497971-B1   INT FUEL CELLS LLC (ITFU)   REISER C A;  US6521008-B1   BOSCH GMBH ROBERT (BOSC)   LENZING T,  KONZELMANN U,  GUENTHER W;  US6551389-B2   FILTERWERK MANN & HUMMEL GMBH (FILW)   SPANNBAUER H,  FREISINGER J;  US6638339-B2   DONALDSON CO INC (DOND)   DALLAS A J,  GOGINS M A,  GRAHAM K M,  ADAMEK D E,  SKUSTER R;  GB2415228-B -- DE10218673-A1   ;  GB417811-A   ;  GB2011273-A   FIAT VEICOLI IND SPA (FIAT)   MAGRINI G;  JP2003013816-A   ;  US5034036-A   NAVISTAR INT TRANSP (INTH)   CREEK D M,  PRINE R A;  US5794733-A   VOLVO GM HEAVY TRUCK CORP (VOLV)   PALENCHAR T J,  STOSEL D E;  US20020100405-A1   ;  US20030010212-A1   ;  WO2002084099-A1   ;  JP4819408-B2 -- JP2000320414-A   HINO MOTORS LTD (HINM)   URUSHIBARA H,  HATAYAMA A,  SUGAWARA K,  SEKIKAWA T;  JP2001221113-A   ;  JP2002358995-A   ;  JP2069056-U   ;  JP4009328-U   ;  JP56045154-U   ;  JP60087365-U   ;  JP61136170-U