WO200057500-A1 -- US5798187-A   UNIV CALIFORNIA (REGC)   WILSON M S,  ZAWODZINSKI C;  US5798188-A   DU PONT DE NEMOURS & CO E I (DUPO)   TAKEDA T,  MUKOHYAMA A;  US6284401-B1 -- US4044193-A   PROTOTECH INC (PROW);  PROTOTECH CO (PROW);  US4610938-A   ELECTRIC POWER RES INST INC (ELPO)   APPLEBY A J;  US4865930-A   HUGHES AIRCRAFT CO (HUGA)   KINDLER A,  HIGLEY L R;  US4876115-A   US DEPT ENERGY (USAT)   RAISTRICK I D;  US5187025-A   ANALYTIC POWER CORP (ANAL-Non-standard)   KELLAND J W,  BRAUN S G;  US5211984-A   UNIV CALIFORNIA (REGC)   WILSON M S;  US5234777-A   US DEPT ENERGY (USAT)   WILSON M S;  US5272017-A   GENERAL MOTORS CORP (GENK)   SWATHIRAJAN S,  MIKHAIL Y M;  US5546911-A   ;  US5561000-A   VITO VLAAMSE INSTELLING TECHNOLOGISCH (VITO-Non-standard)   DIRVEN P,  ENGELEN W;  US5563109-A   MANNESMANN AG (MANS);  COMPUR MONITORS SENSOR TECHNOLOGY GMBH (COMP-Non-standard)   RISSE F;  US5578388-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5620807-A   DOW CHEM CO (DOWC)   PLOWMAN K R,  SCORTICHINI C L,  WEBB S P,  MUSSELL R D;  US5716664-A   MARCHETTI G A (MARC-Individual)   MARCHETTI G A;  US5798187-A   UNIV CALIFORNIA (REGC)   WILSON M S,  ZAWODZINSKI C;  US5798188-A   DU PONT DE NEMOURS & CO E I (DUPO)   TAKEDA T,  MUKOHYAMA A;  US5858569-A   PLUG POWER LLC (PLUG-Non-standard)   VITALE N G,  MEACHER J;  US5863395-A   DU PONT DE NEMOURS & CO E I (DUPO)   MAH D T,  LAW C G,  NEWMAN J S,  EAMES D J,  TRAINHAM J A;  US5869201-A   MARCHETTI G A (MARC-Individual)   MARCHETTI G A;  US5869202-A   MARCHETTI G A (MARC-Individual)   MARCHETTI G A;  US5885729-A   MARCHETTI G A (MARC-Individual)   MARCHETTI G A;  US5891319-A   DU PONT DE NEMOURS & CO E I (DUPO)   FREIRE F J,  KEATING K B,  SAKATA E K,  TRAINHAM J A,  LAW C G,  NEWMAN J S,  EAMES D J;  US5972196-A   LYNNTECH INC (LYNN-Non-standard)   MURPHY O J,  HITCHENS G D;  US6001226-A   DU PONT DE NEMOURS & CO E I (DUPO)   FREIRE F J,  MAH D T;  US6010612-A   DU PONT DE NEMOURS & CO E I (DUPO)   FREIRE F J,  KAISER B A,  FELIX V M,  MAH D T,  TRAINHAM J A,  LAW C G,  NEWMAN J S,  EAMES D J;  US6022634-A   DE NORA SPA (ORON)   RAMUNNI E,  FLEBA G,  BRAMBILLA M