;  WO2005012869-A2 -- US4008394-A   SENSORS INC (SENS-Non-standard);  US6067840-A   TEXAS INSTR INC (TEXI)   CHELVAYOHAN M,  AHNE A J;  US20010048079-A1   ;  US20020104967-A1   ;  US6534769-B1   GE MARQUETTE MEDICAL SYSTEMS INC (GENE)   GRAHAM J E;  US7034304-B2 -- JP61281966-A   ;  US4008394-A   SENSORS INC (SENS-Non-standard);  US4500207-A   FERRANTI PLC (FRRN)   MAIDEN A J;  US4520265-A   ;  US4578762-A   TRI-MED INC (TRIM-Non-standard)   WONG J Y;  US4709150-A   BUROUGH I G (BURO-Individual)   BUROUGH I G,  PELLISSIER R O,  JOHNSON K W;  US4772790-A   TELEDYNE IND INC (TDCO)   ALDRIDGE R H;  US5041723-A   HORIBA LTD (HORB)   ISHIDA M,  OHNISHI T,  TAKADA S,  MIYATAKE K;  US5163332-A   GAZTECH INT CORP (GAZT-Non-standard)   WONG J Y;  US5220402-A   NIENOW H C (NIEN-Individual)   HARVEY R J;  US5444249-A   TELAIRE SYSTEMS INC (TELA-Non-standard)   WONG J Y;  US5488227-A   GEOTECHNICAL INSTR UK LTD (GEOT-Non-standard)   SWEET C R;  US5585635-A   ;  US5721430-A   ENGELHARD SENSOR TECHNOLOGIES INC (ENGH)   WONG J Y;  US5781306-A   SICK GMBH OPTIK-ELEKTRONIK ERWIN (SIOP)   HARTIG W,  KAUFMANN J;  US5811812-A   ANDROS INC (ANDR-Non-standard)   WILLIAMS K G,  CHRISTENSEN K S;  US5834777-A   TELAIRE SYSTEMS INC (TELA-Non-standard)   WONG J Y;  US5850354-A   VAISALA OY (VAIS-Non-standard)   BRAMLEY P,  DENNIS R B,  HELENELUND C;  US5889199-A   JAESENT INC (JAES-Non-standard)   TIETZE R W,  WONG J Y;  US6067840-A   TEXAS INSTR INC (TEXI)   CHELVAYOHAN M,  AHNE A J;  US6151952-A   ;  US20010048079-A1   ;  US20020104967-A1   ;  US6469303-B1   RAE SYSTEMS INC (RAES-Non-standard)   SUN H T,  HSI P C;  US6528420-B1   CHARTERED SEMICONDUCTOR MFG LTD PTE (CSEM)   TONG W H,  YANG C Y,  ZHANG J,  QUAN Q W;  US6534769-B1   GE MARQUETTE MEDICAL SYSTEMS INC (GENE)   GRAHAM J E;  WO2005012869-A3 -- US4008394-A   SENSORS INC (SENS-Non-standard);  US6067840-A   TEXAS INSTR INC (TEXI)   CHELVAYOHAN M,  AHNE A J;  US20010048079-A1   ;  US20020104967-A1   ;  US6534769-B1   GE MARQUETTE MEDICAL SYSTEMS INC (GENE)   GRAHAM J E