STERIS CORPORATION / ENGELHARDT CORP / AMUCHINA INTERNATIONAL INC / RICKET BENCKISER Inc. / ETI H2O Inc. / AMERI-KLEEN CORP. / SANITIZERS INC / AMERI-KLEEN WHIRLPOOL PEDICURE SPA / VIROX TECHNOLOGIES INC. / MINNTECH CORP / BETCO CORP LTD / STEPAN CO. / HP / HAMPTON MFG INC / MBL INDUSTRIES INC. / CURRENT TECHNOLOGIES INC. / Lonza Inc / International Dioxcide Inc. / Ecolab Inc. / ATHEA LABORATORIES INC. / SUNBURST CHEMICALS INC. / KING RESEARCH INC / RECKITT BENCKISER INC. / United Industries Corp. / Johnson Diversey Inc / BUTCHER CO / SHERWIN-WILLIAMS / /