WO200145187-A2 -- EP591800-A1   SIEMENS AG (SIEI)   STRASSER K,  SAHLER R,  MATTEJAT A;  US4124478-A   TSIEN H C (TSIE-Individual)   TSIEN H C,  SHROPSHIRE J A,  VENERO A F;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5750281-A   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  KENNA J T,  WASHINGTON K B;  US2002172854-A1 -- US4124478-A   TSIEN H C (TSIE-Individual)   TSIEN H C,  SHROPSHIRE J A,  VENERO A F;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5472801-A   SIEMENS AG (SIEI)   STRASSER K,  SAHLER R,  MATTEJAT A;  US5514486-A   UNIV CALIFORNIA OFFICE TECHNOLOGY (REGC)   WILSON M S;  US5565072-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5750281-A   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  KENNA J T,  WASHINGTON K B;  US6007933-A   PLUG POWER LLC (PLUG-Non-standard)   JONES D O;  EP1243044-B1 -- EP591800-A1   SIEMENS AG (SIEI)   STRASSER K,  SAHLER R,  MATTEJAT A;  US4124478-A   TSIEN H C (TSIE-Individual)   TSIEN H C,  SHROPSHIRE J A,  VENERO A F;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5750281-A   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  KENNA J T,  WASHINGTON K B;  US6955862-B2 -- EP591800-A1   SIEMENS AG (SIEI)   STRASSER K,  SAHLER R,  MATTEJAT A;  US4124478-A   TSIEN H C (TSIE-Individual)   TSIEN H C,  SHROPSHIRE J A,  VENERO A F;  US5108849-A   CANADA MIN NAT DEFENCE (MIND)   WATKINS D S,  DIRCKS K W,  EPP D G;  US5472801-A   SIEMENS AG (SIEI)   STRASSER K,  SAHLER R,  MATTEJAT A;  US5514486-A   UNIV CALIFORNIA OFFICE TECHNOLOGY (REGC)   WILSON M S;  US5565072-A   DE NORA PERMELEC SPA (ORON)   FAITA G,  MANTEGAZZA C;  US5750281-A   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  KENNA J T,  WASHINGTON K B;  US6007933-A   PLUG POWER LLC (PLUG-Non-standard)   JONES D O;  WO1996020510-A1   ;  JP4846951-B2 -- JP03205763-A   ;  JP06218275-A   ;  JP06349508-A   ;  JP10509841-W   BALLARD POWER SYSTEMS INC (BLRD)   JAMES G A,  RAMJI S N,  WASHINGTON K B,  KENNA J T;  US4124478-A   TSIEN H C (TSIE-Individual)   TSIEN H C,  SHROPSHIRE J A,  VENERO A F;  US5514486-A   UNIV CALIFORNIA OFFICE TECHNOLOGY (REGC)   WILSON M S;  US6007933-A   PLUG POWER LLC (PLUG-Non-standard)   JONES D O