WO2003057351-A1 -- US5254253-A   ZENON ENVIRONMENTAL INC (ZENO-Non-standard)   BEHMANN H;  US5494577-A   STORK FRIESLAND BV (STRK)   REKERS C J N;  US5914040-A   RHONE POULENC CHIM (RHON)   PESCHER Y,  RAES J,  DANDA S,  CASTELAS B,  RABATEL F,  MORALES J,  BONFILL J;  US5932099-A   OTV OMNIUM TRAITEMENTS&VALORISATION SA (VEOL)   COTE P,  SIBONY J,  TAZI-PAIN A,  FAIVRE M;  US6313246-B1   NALCO CHEM CO (NALC)   CARTER P W,  MURRAY P G,  BRAMMER L E,  DUNHAM A J;  US6517723-B1   CH2M HILL (CHTW-Non-standard)   DAIGGER G T,  WOLLMANN A M,  MURTHY S N,  FLEISCHER E J,  BRODERICK T A;  US6723245-B1 -- EP888810-A1   NITTO DENKO CORP (NITL)   HACHISUKA H,  IKEDA K;  JP03004996-A   ;  JP04004098-A   ;  JP05345195-A   ;  JP07232192-A   ;  JP63091196-A   ;  US3472765-A   ;  US4749494-A   MITSUI SEKIYU KAGAKU KOGYO KK (MITC);  TOMOYASU T (TOMO-Individual)   TOMOYASU T,  HONDA S;  US5254253-A   ZENON ENVIRONMENTAL INC (ZENO-Non-standard)   BEHMANN H;  US5266203-A   ARROWHEAD IND WATER (ARRO-Non-standard)   BERGAMINI D,  MUKHOPADHYAY D;  US5494577-A   STORK FRIESLAND BV (STRK)   REKERS C J N;  US5558774-A   ;  US5914040-A   RHONE POULENC CHIM (RHON)   PESCHER Y,  RAES J,  DANDA S,  CASTELAS B,  RABATEL F,  MORALES J,  BONFILL J;  US5932099-A   OTV OMNIUM TRAITEMENTS&VALORISATION SA (VEOL)   COTE P,  SIBONY J,  TAZI-PAIN A,  FAIVRE M;  US6416668-B1   AL-SAMADI R A (ALSA-Individual)   AL-SAMADI R A;  US6428705-B1   MICROBAR INC (MICR-Non-standard)   ALLEN S D,  GOLDEN J H;  US6517723-B1   CH2M HILL (CHTW-Non-standard)   DAIGGER G T,  WOLLMANN A M,  MURTHY S N,  FLEISCHER E J,  BRODERICK T A;  AU2003200842-B2 -- US6313246-B1   NALCO CHEM CO (NALC)   CARTER P W,  MURRAY P G,  BRAMMER L E,  DUNHAM A J;  US6517723-B1   CH2M HILL (CHTW-Non-standard)   DAIGGER G T,  WOLLMANN A M,  MURTHY S N,  FLEISCHER E J,  BRODERICK T A;  EP1461141-B1 -- US5254253-A   ZENON ENVIRONMENTAL INC (ZENO-Non-standard)   BEHMANN H;  US5494577-A   STORK FRIESLAND BV (STRK)   REKERS C J N;  US5914040-A   RHONE POULENC CHIM (RHON)   PESCHER Y,  RAES J,  DANDA S,  CASTELAS B,  RABATEL F,  MORALES J,  BONFILL J;  US5932099-A   OTV OMNIUM TRAITEMENTS&VALORISATION SA (VEOL)   COTE P,  SIBONY J,  TAZI-PAIN A,  FAIVRE M;  US6313246-B1   NALCO CHEM CO (NALC)   CARTER P W,  MURRAY P G,  BRAMMER L E,  DUNHAM A J;  US6517723-B1   CH2M HILL (CHTW-Non-standard)   DAIGGER G T,  WOLLMANN A M,  MURTHY S N,  FLEISCHER E J,  BRODERICK T A;  CZ306420-B6 -- US5494577-A   STORK FRIESLAND BV (STRK)   REKERS C J N;  US5914040-A   RHONE POULENC CHIM (RHON)   PESCHER Y,  RAES J,  DANDA S,  CASTELAS B,  RABATEL F,  MORALES J,  BONFILL J;  US5932099-A   OTV OMNIUM TRAITEMENTS&VALORISATION SA (VEOL)   COTE P,  SIBONY J,  TAZI-PAIN A,  FAIVRE M;  US6203705-B1   KOCH MICROELECTRONIC SERVICE (KOCH-Non-standard)   JAMES D K,  CAMPBELL D E,  NGUYEN T;  WO1996007615-A1