US2003033074-A1 -- US4403473-A   CATERPILLAR TRACTOR CO (CATE);  US4403476-A   GENERAL ELECTRIC CO (GENE)   JOHNSON L H,  COUCHMAN R S,  SPENCER R C,  BOOTH J A,  HOLMAN R J;  US4854123-A   NIPPON SHOKUBAI KAGAKU KOGYO CO LTD (JAPC)   KOBAYASHI M,  KINOSHITA F,  MITSUI K,  INOUE A;  US5201802-A   TOYOTA JIDOSHA KK (TOYT)   HIROTA S,  KATOH K;  US5209061-A   TOYOTA JIDOSHA KK (TOYT)   TAKESHIMA S;  US5323868-A   TOYOTA JIDOSHA KK (TOYT)   KAWASHIMA Y;  US5345761-A   FORD MOTOR CO (FORD)   BRANDENBURG L R,  KING E T,  HENIG Y I;  US5367875-A   COLTEC IND INC (COLN)   KASEL E A,  ABOUJAOUDE F W;  US5369959-A   SNAP-ON INC (SNPO)   MARTIN J S,  PFEFFERLE D P,  HUSARIK R L;  US5497941-A   NIPPONDENSO CO LTD (NPDE)   SUZUKI T,  NUMAZAWA S;  US5522218-A   CATERPILLAR INC (CATE)   LANE W H,  PETERSON R N,  SMITH A L,  WHITE S T,  LEARNED D J;  US5540047-A   SIEMENS AG (SIEI)   DAHLHEIM C,  FLEISCHER M,  MEIXNER H;  US5609022-A   GENERAL MOTORS CORP (GENK)   CHO B K;  US5609026-A   KLEENAIR SYSTEMS INC (KLEE-Non-standard)   DAVIS J W,  HYLTON W M,  ZABSKY J M,  BERRIMAN L P;  US5628186-A   SIEMENS AG (SIEI)   SCHMELZ H;  US5845487-A   DAIMLER-BENZ AG (DAIM)   FRAENKLE G,  MARQUARDT K;  US5862497-A   HONDA GIKEN KOGYO KK (HOND)   YANO T,  TATARA Y,  TAMAGAWA Y;  US5875864-A   HONDA GIKEN KOGYO KK (HOND)   YANO T,  YONEKURA T,  IKEBE H,  TATARA Y,  TAMAGAWA Y;  US5924280-A   CLEAN DIESEL TECHNOLOGIES INC (CLEA-Non-standard)   TARABULSKI T J;  US5934073-A   DEGUSSA AG (DEGS)   GIESHOFF J,  LOX E,  KREUZER T;  US5950422-A   SIEMENS AG (SIEI)   DOELLING W;  US6018694-A   DENSO CORP (NPDE)   EGAMI T,  FUJITA H,  BANZAI K,  SAWADA T,  TSUJI H,  OBAYASHI K,  KAJIURA H,  SEGUCHI M,  KURITA T;  US6082102-A   SIEMENS AG (SIEI)   WISSLER G,  PAJONK G,  HOFMANN L,  WEIGL M,  MATHES W,  NEUFERT R,  WENZLAWSKI K,  WEISENSEL D;  US6089015-A   DEGUSSA AG (DEGS)   STREHLAU W,  LOX E,  KREUZER T,  HOEHNE J;  US6119451-A   UNIV CALIFORNIA (REGC)   HSIAO M,  MERRITT B T,  PENETRANTE B M,  GOERZ D A,  BRUSASCO R,  VOGTLIN G E,  REYNOLDS J G;  US6125629-A   ENGELHARD CORP (ENGH)   PATCHETT J A;  US6164063-A   MENDLER E C (MEND-Individual)   MENDLER E C;  US6173569-B1   TOYOTA JIDOSHA KK (TOYT)   KUSUDA M,  HIROSE K,  KANAI H,  TAKAOKA T,  INOUE T,  NISHIGAKI T,  KOJIMA M;  US6421599-B1   FORD GLOBAL TECHNOLOGIES INC (FORD)   LIPPA A J,  BREHOB D D,  YANG J,  XU L;  US7110904-B2 -- FR2784626-A1   RENAULT SA (RENA)   BASTIEN R,  CORNET P O;  JP11247679-A   ;  JP2000045814-A   NISSAN MOTOR CO LTD (NSMO)   KANEKO Y,  KITADA S,  KIKUCHI T,  OWADA M;  JP2000054838-A   SWATCH GROUP MANAGEMENT SERVICES AG (SWAT-Non-standard)   SONNTAG R,  APTER R;  JP2000104629-A   ;  US4403473-A   CATERPILLAR TRACTOR CO (CATE);  US4403476-A   GENERAL ELECTRIC CO (GENE)   JOHNSON L H,  COUCHMAN R S,  SPENCER R C,  BOOTH J A,  HOLMAN R J;  US4854123-A   NIPPON SHOKUBAI KAGAKU KOGYO CO LTD (JAPC)   KOBAYASHI M,  KINOSHITA F,  MITSUI K,  INOUE A;  US5201802-A   TOYOTA JIDOSHA KK (TOYT)   HIROTA S,  KATOH K;  US5209061-A   TOYOTA JIDOSHA KK (TOYT)   TAKESHIMA S;  US5323868-A   TOYOTA JIDOSHA KK (TOYT)   KAWASHIMA Y;  US5345761-A   FORD MOTOR CO (FORD)   BRANDENBURG L R,  KING E T,  HENIG Y I;  US5367875-A   COLTEC IND INC (COLN)   KASEL E A,  ABOUJAOUDE F W;  US5369956-A   MERCEDES-BENZ AG (DAIM)   DAUDEL H,  MARQUARDT K,  GAERTNER U;  US5497941-A   NIPPONDENSO CO LTD (NPDE)   SUZUKI T,  NUMAZAWA S;  US5522218-A   CATERPILLAR INC (CATE)   LANE W H,  PETERSON R N,  SMITH A L,  WHITE S T,  LEARNED D J;  US5540047-A   SIEMENS AG (SIEI)   DAHLHEIM C,  FLEISCHER M,  MEIXNER H;  US5609022-A   GENERAL MOTORS CORP (GENK)   CHO B K;  US5609026-A   KLEENAIR SYSTEMS INC (KLEE-Non-standard)   DAVIS J W,  HYLTON W M,  ZABSKY J M,  BERRIMAN L P;  US5628186-A   SIEMENS AG (SIEI)   SCHMELZ H;  US5845487-A   DAIMLER-BENZ AG (DAIM)   FRAENKLE G,  MARQUARDT K;  US5862497-A   HONDA GIKEN KOGYO KK (HOND)   YANO T,  TATARA Y,  TAMAGAWA Y;  US5875864-A   HONDA GIKEN KOGYO KK (HOND)   YANO T,  YONEKURA T,  IKEBE H,  TATARA Y,  TAMAGAWA Y;  US5924280-A   CLEAN DIESEL TECHNOLOGIES INC (CLEA-Non-standard)   TARABULSKI T J;  US5934073-A   DEGUSSA AG (DEGS)   GIESHOFF J,  LOX E,  KREUZER T;  US5950422-A   SIEMENS AG (SIEI)   DOELLING W;  US6018694-A   DENSO CORP (NPDE)   EGAMI T,  FUJITA H,  BANZAI K,  SAWADA T,  TSUJI H,  OBAYASHI K,  KAJIURA H,  SEGUCHI M,  KURITA T;  US6082102-A   SIEMENS AG (SIEI)   WISSLER G,  PAJONK G,  HOFMANN L,  WEIGL M,  MATHES W,  NEUFERT R,  WENZLAWSKI K,  WEISENSEL D;  US6089015-A   DEGUSSA AG (DEGS)   STREHLAU W,  LOX E,  KREUZER T,  HOEHNE J;  US6119451-A   UNIV CALIFORNIA (REGC)   HSIAO M,  MERRITT B T,  PENETRANTE B M,  GOERZ D A,  BRUSASCO R,  VOGTLIN G E,  REYNOLDS J G;  US6125629-A   ENGELHARD CORP (ENGH)   PATCHETT J A;  US6164063-A   MENDLER E C (MEND-Individual)   MENDLER E C;  US6173569-B1   TOYOTA JIDOSHA KK (TOYT)   KUSUDA M,  HIROSE K,  KANAI H,  TAKAOKA T,  INOUE T,  NISHIGAKI T,  KOJIMA M;  US6421599-B1   FORD GLOBAL TECHNOLOGIES INC (FORD)   LIPPA A J,  BREHOB D D,  YANG J,  XU L