US2007287052-A1 -- US3915673-A   DORYOKURO KAKUNENRYO KAIH (DOR-Non-standard);  DORYOKURO KAKUNENRYO KAIHATSU (DORY);  US3998610-A   COMINCO LTD (CMSC)   LEITH W C;  US4278450-A   GEORGIA TECH RES INST (GTEK)   HURST D R,  ELSTON L W;  US4361490-A   SAGET P (SAGE-Individual);  SASHE P (SASH-Individual);  US4491624-A   SYNECTICS INC (SYNE)   SARBACHER R I,  FECHTER H R;  US5064732-A   INT FUEL CELLS CORP (ITFU)   MEYER A P;  US5792363-A   RODGERS W (RODG-Individual)   RODGERS W;  US20030190513-A1   ;  US6190438-B1   THERMO BLACK CLAWSON INC (BLAC)   PARKS C R;  US6436562-B1   EMPRISE TECHNOLOGY ASSOC CORP (EMPR-Non-standard)   DUBOSE R A;  US6436563-B1   HYDROGENICS CORP (HYDR-Non-standard)   FRANK D,  CHEN X;  US6447945-B1   GEN ATOMICS (GEAT)   STRECKERT H H,  BLUE L P,  KLUNKER J;  US6869469-B2   GENERAL MOTORS CORP (GENK)   GROVER T T,  FORTE J R;  US6893754-B2   DAIMLERCHRYSLER AG (DAIM)   DOCTER A,  SOMMER M,  AGAR D W,  GOSEWINKEL M;  US6921601-B2   SENNER R (SENN-Individual);  VON HELMOLT R (VHEL-Individual)   SENNER R,  VON HELMOLT R;  US6932847-B2   MILLENNIUM CELL INC (MILL-Non-standard)   AMENDOLA S C,  PETILLO P J,  PETILLO S C,  MOHRING R M;  US6950729-B2   MITCHELL N (MITC-Individual);  FREIMAN J F (FREI-Individual)   MITCHELL N,  FREIMAN J F;  US7618471-B2 -- US3915673-A   DORYOKURO KAKUNENRYO KAIH (DOR-Non-standard);  DORYOKURO KAKUNENRYO KAIHATSU (DORY);  US3998610-A   COMINCO LTD (CMSC)   LEITH W C;  US4278450-A   GEORGIA TECH RES INST (GTEK)   HURST D R,  ELSTON L W;  US4361490-A   SAGET P (SAGE-Individual);  SASHE P (SASH-Individual);  US4491624-A   SYNECTICS INC (SYNE)   SARBACHER R I,  FECHTER H R;  US5064732-A   INT FUEL CELLS CORP (ITFU)   MEYER A P;  US5792363-A   RODGERS W (RODG-Individual)   RODGERS W;  US20030190513-A1   ;  US6190438-B1   THERMO BLACK CLAWSON INC (BLAC)   PARKS C R;  US6436562-B1   EMPRISE TECHNOLOGY ASSOC CORP (EMPR-Non-standard)   DUBOSE R A;  US6436563-B1   HYDROGENICS CORP (HYDR-Non-standard)   FRANK D,  CHEN X;  US6447945-B1   GEN ATOMICS (GEAT)   STRECKERT H H,  BLUE L P,  KLUNKER J;  US6869469-B2   GENERAL MOTORS CORP (GENK)   GROVER T T,  FORTE J R;  US6893754-B2   DAIMLERCHRYSLER AG (DAIM)   DOCTER A,  SOMMER M,  AGAR D W,  GOSEWINKEL M;  US6921601-B2   SENNER R (SENN-Individual);  VON HELMOLT R (VHEL-Individual)   SENNER R,  VON HELMOLT R;  US6932847-B2   MILLENNIUM CELL INC (MILL-Non-standard)   AMENDOLA S C,  PETILLO P J,  PETILLO S C,  MOHRING R M;  US6950729-B2   MITCHELL N (MITC-Individual);  FREIMAN J F (FREI-Individual)   MITCHELL N,  FREIMAN J F