WO200039363-A1 -- EP275466-A   DOW CHEM CO (DOWC)   DOOR R D,  MCMICHAEL J W;  WO1993024677-A1   ;  WO1998013891-A1   ;  WO1998040537-A1   ;  WO1999061684-A1   ;  EP1147243-B1 -- EP275466-A   DOW CHEM CO (DOWC)   DOOR R D,  MCMICHAEL J W;  WO1993024677-A1   ;  WO1998013891-A1   ;  WO1998040537-A1   ;  WO1999061684-A1   ;  US6682843-B2 -- DE3112798-A   ;  EP275466-A   DOW CHEM CO (DOWC)   DOOR R D,  MCMICHAEL J W;  US3936005-A   K SCHNELL (SCHN-Individual);  US4293394-A   ;  US4317864-A   SIEMENS AG (SIEI)   STRASSER K;  US4410410-A   ;  US4545886-A   ELTECH SYSTEMS CORP (ELTE);  DE NORA V (DNOR-Individual)   DENORA V,  BEER H B;  US4732660-A   DOW CHEM CO (DOWC)   PLOWMAN K R,  ZACHARY R E;  US4756980-A   ELTECH SYSTEMS CORP (ELTE)   NIKSA M J,  POHTO G R,  LAKATOS L K,  WHEELER D J,  SOLOMON F,  NIKSA A J,  SCHUE T J,  GENODMAN Y;  US5009968-A   INT FUEL CELLS CORP (ITFU)   GUTHRIE R J,  KATZ M,  SCHROLL C R;  US5296109-A   UNITED TECHNOLOGIES CORP (UNAC)   CARLSON H A,  LEONIDA A,  MCELROY J F,  SHANE E M;  US5316644-A   UNITED TECHNOLOGIES CORP (UNAC)   TITTERINGTON W A,  LEONIDA A;  US5350496-A   UNITED TECHNOLOGIES CORP (UNAC)   SMITH W F,  MCELROY J F;  US5372689-A   UNITED TECHNOLOGIES CORP (UNAC)   CARLSON H A,  LEONIDA A,  MCELROY J F,  SHANE E M;  US5466354-A   UNITED TECHNOLOGIES CORP (UNAC)   LEONIDA A,  MOULTHROP L,  CRITZ K;  US5580672-A   UNITED TECHNOLOGIES CORP (UNAC)   ZAGAJA J A,  LACONTI A B;  US5783050-A   ELTECH SYSTEMS CORP (ELTE)   COIN R,  ERNES L M,  GETSY A W,  HALKO E M,  HARDEE K L,  NIKSA M J;  US5817220-A   ;  US5824199-A   DU PONT DE NEMOURS & CO E I (DUPO)   SIMMONS W J,  LAW C G,  TRAINHAM J A,  NEWMAN J S,  EAMES D J;  US6024848-A   INT FUEL CELLS CORP (ITFU)   DUFNER B F,  BREAULT R D;  US6099716-A   PROTON ENERGY SYSTEMS (PROT-Non-standard)   MOLTER T M,  MOULTHROP L C,  FRIEDLAND R J,  DRISTY M E;  US6171719-B1   UNITED TECHNOLOGIES CORP (UNAC)   ROY R J,  CRITZ K M,  LEONIDA A;  US6270636-B1   PROTON ENERGY SYSTEMS INC (PROT-Non-standard)   BYRON R H,  MOLTER T M,  DRISTY M E;  US6368740-B1   PROTON ENERGY SYSTEMS INC (PROT-Non-standard)   DRISTY M E;  WO1993024677-A1   ;  WO1998013891-A1   ;  WO1998023794-A1   ;  WO1998024136-A1   ;  WO1998040537-A1   ;  WO1999027599-A1   ;  WO1999061684-A1