US2004194384-A1 -- US4236899-A   SIEMENS AG (SIEI);  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  US4844837-A   ENGELHARD MINERALS CORP (ENGH);  US4909808-A   NAT AERO & SPACE ADMIN (USAS)   VOECKS G E;  US4926933-A   GRAY J (GRAY-Individual)   GRAY J;  US5547368-A   AIR PROD & CHEM INC (AIRP);  COMBUSTION TEC INC (COMB-Non-standard)   NABORS J K,  JOSHI M L,  BROADWAY L,  SLAVEJKOV A G;  US5584178-A   SOUTHWEST RES INST (SWRI)   NAEGELI D W,  CRANE M E;  US6077620-A   GENERAL MOTORS CORP (GENK)   PETTIT W H;  US20020071790-A1   ;  US20020083646-A1   ;  US20020088740-A1   ;  US20020090326-A1   ;  US20020090327-A1   ;  US20020090328-A1   ;  US20020094310-A1   ;  US20020155329-A1   ;  US20020170504-A1   ;  US20030021741-A1   ;  US20030021742-A1   ;  US6190623-B1   UOP LLC (UNVO)   SANGER R J,  SENETAR J J,  VANDEN BUSSCHE K,  TOWLER G P,  DOSHI K J;  US6232005-B1   GENERAL MOTORS CORP (GENK)   PETTIT WILLIAM H;  US6254807-B1   UNIV MINNESOTA (MINU)   SCHMIDT L D,  WITT P M;  US6257868-B1   INVENT GMBH ENTWICKLUNG NEUER TECHNOLOGI (INVE-Non-standard)   DURST F,  KEPPLER M,  WECLAS M;  US6348278-B1   MOBIL OIL CORP (MOBI)   LAPIERRE R B,  PARTRIDGE R D;  US6458334-B1   BOC GROUP INC (BRTO)   TAMHANKAR S S,  RAMPRASAD N,  CHEN Y,  TOMCZAK M S;  US6465118-B1   IDATECH LLC (BLRD)   DICKMAN A J,  EDLUND D J,  PLEDGER W A;  US6497856-B1   H2GEN INNOVATIONS INC (HTWO-Non-standard)   LOMAX F D,  REARDON J P,  BARBOUR J P;  US6521204-B1   GENERAL MOTORS CORP (GENK)   BORUP R L,  PETTIT W H;  WO2004090075-A2 -- US4236899-A   SIEMENS AG (SIEI);  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  WO2000066487-A1   ;  EP1611221-A2 -- US20010031387-A1   ;  US20020040549-A1   ;  US6232005-B1   GENERAL MOTORS CORP (GENK)   PETTIT WILLIAM H;  US6257868-B1   INVENT GMBH ENTWICKLUNG NEUER TECHNOLOGI (INVE-Non-standard)   DURST F,  KEPPLER M,  WECLAS M;  US7235217-B2 -- EP1193217-A1   DAIKIN IND LTD (DAIK)   OKAMOTO Y,  MATSUI N,  IKEGAMI S,  YONEMOTO K,  OKUBO E,  OHGAMI I;  US4236899-A   SIEMENS AG (SIEI);  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  US4844837-A   ENGELHARD MINERALS CORP (ENGH);  US4909808-A   NAT AERO & SPACE ADMIN (USAS)   VOECKS G E;  US4926933-A   GRAY J (GRAY-Individual)   GRAY J;  US5547368-A   AIR PROD & CHEM INC (AIRP);  COMBUSTION TEC INC (COMB-Non-standard)   NABORS J K,  JOSHI M L,  BROADWAY L,  SLAVEJKOV A G;  US5584178-A   SOUTHWEST RES INST (SWRI)   NAEGELI D W,  CRANE M E;  US6077620-A   GENERAL MOTORS CORP (GENK)   PETTIT W H;  US20020071790-A1   ;  US20020083646-A1   ;  US20020088740-A1   ;  US20020090326-A1   ;  US20020090327-A1   ;  US20020090328-A1   ;  US20020094310-A1   ;  US20020155329-A1   ;  US20020170504-A1   ;  US20030021741-A1   ;  US20030021742-A1   ;  US6190623-B1   UOP LLC (UNVO)   SANGER R J,  SENETAR J J,  VANDEN BUSSCHE K,  TOWLER G P,  DOSHI K J;  US6232005-B1   GENERAL MOTORS CORP (GENK)   PETTIT WILLIAM H;  US6254807-B1   UNIV MINNESOTA (MINU)   SCHMIDT L D,  WITT P M;  US6257868-B1   INVENT GMBH ENTWICKLUNG NEUER TECHNOLOGI (INVE-Non-standard)   DURST F,  KEPPLER M,  WECLAS M;  US6348278-B1   MOBIL OIL CORP (MOBI)   LAPIERRE R B,  PARTRIDGE R D;  US6458334-B1   BOC GROUP INC (BRTO)   TAMHANKAR S S,  RAMPRASAD N,  CHEN Y,  TOMCZAK M S;  US6465118-B1   IDATECH LLC (BLRD)   DICKMAN A J,  EDLUND D J,  PLEDGER W A;  US6497856-B1   H2GEN INNOVATIONS INC (HTWO-Non-standard)   LOMAX F D,  REARDON J P,  BARBOUR J P;  US6521204-B1   GENERAL MOTORS CORP (GENK)   BORUP R L,  PETTIT W H;  WO2000066487-A1   ;  KR1118825-B1 -- US4236899-A   SIEMENS AG (SIEI);  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M;  JP5015590-B2 -- JP11176460-A   GENERAL MOTORS CORP (GENK)   PETTIT WILLIAM H;  US4522894-A   ENGELHARD MINERALS CORP (ENGH)   HWANG H S,  HECK R M,  YARRINGTON R M