US2007042236-A1 -- US3629075-A   SIEMENS AG (SIEI);  US4310605-A   ENGELHARD MINERALS CORP (ENGH)   EARLY J,  KAUFMAN A,  STAWSKY A;  US4436793-A   ENGELHARD CORP (ENGH)   ADIHART O J;  US4883724-A   FUJI ELECT CO LTD (FJIE)   YAMAMOTO O;  US5683828-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5858567-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5863671-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US5932365-A   IND TECHNOLOGY RES INST (ITRI)   LIN C,  LIN A S,  CHENG Y;  US5962155-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   KURANAKA S,  GAMOU T,  MORITA Y,  HATOH K;  US6028414-A   H POWER ENTERPRISES CANADA INC (HPOW-Non-standard)   CHOUINARD J,  ROBERGE R,  ROSS G;  US6051331-A   AEROJET GEN CORP (AERG)   SPEAR R G,  MUEGGENBURG H H,  HODGE R;  US6057051-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   UCHIDA M,  FUKUOKA Y,  SUGAWARA Y,  EDA N;  US6093500-A   INT FUEL CELLS CORP (ITFU)   MARGIOTT P R,  CALLAGHAN V M,  KABIR Z;  US6110611-A   SIEMENS AG (SIEI)   STUEHLER W,  STENGER H,  KEIM M;  US20010049038-A1   ;  US20010053465-A1   ;  US20020031692-A1   ;  US20020155339-A1   ;  US20030036806-A1   ;  US20030234010-A1   ;  US20040016769-A1   ;  US20040023094-A1   ;  US20040046526-A1   ;  US20040065171-A1   ;  US20040067403-A1   ;  US20040094134-A1   ;  US20040219397-A1   ;  US20040219398-A1   ;  US20050162122-A1   ;  US20050233180-A1   ;  US6387556-B1   AVISTA LAB INC (AVIS-Non-standard)   FUGLEVAND W A,  BAYYUK S I,  LLOYD G A,  DEVRIES P D,  LOTT D R,  SCARTOZZI J P;  US6544679-B1   MILLENNIUM CELL INC (MILL-Non-standard)   PETILLO P J,  AMENDOLA S,  PETILLO S C;  US6577026-B1   DAIMLERCHRYSLER AG (DAIM)   SONNTAG J,  FALLER P,  JANSEN A,  SCHELL A;  US6989651-B1   JADOO POWER SYSTEMS INC (JADO-Non-standard)   ARIKARA M P,  BAWDEN L R,  BERGER W J,  VAN FLEET B H;  US6992460-B1   JADOO POWER SYSTEMS INC (JADO-Non-standard)   ARIKARA M P,  BAWDEN L R,  BERGER W J,  VAN FLEET B H;  US7399325-B1   FUELSELL TECHNOLOGIES INC (FUEL-Non-standard)   REDMOND S D;  US6686079-B2   SCHLUMBERGER TECHNOLOGY CORP (SLMB)   ZHANG W,  HENSLEY D E,  HAVLINEK K L;  US6738692-B2   SCHIENBEIN L A (SCHI-Individual);  HAMMERSTROM D J (HAMM-Individual);  DROPPO G W (DROP-Individual);  HARRIS B E (HARR-Individual)   SCHIENBEIN L A,  HAMMERSTROM D J,  DROPPO G W,  HARRIS B E;  US6835481-B2   IDATECH LLC (BLRD)   DICKMAN A J,  EDLUND D J;  US6989207-B2   PLUG POWER INC (PLUG-Non-standard)   AUSTIN D G,  PICCIRILLO N,  RUSH K M,  BOYER J R,  ELTER J F,  CARLSON J D,  BOGARDUS S A;  US7011768-B2   JENSEN C M (JENS-Individual);  REDMOND S D (REDM-Individual)   JENSEN C M,  REDMOND S D;  US7169489-B2   REDMOND S D (REDM-Individual)   REDMOND S D