WO2008036090-A1 -- US3186795-A   ;  US4246417-A   LUMMUS CO (LUMM)   TSAO U;  US4547293-A   US DEPT ENERGY (USAT)   KING C J,  MACKENZIE P D;  US2009246573-A1 -- US3455819-A   ;  US3920419-A   REPUBLIC STEEL CORP (REPS)   SCHROEDER J W,  NASO A C;  US3961018-A   UTD AIR SPECIALISTS (UNAI-Non-standard)   WILLIAMSON W H;  US4259302-A   UNITED TECHNOLOGIES CORP (UNAC)   KATZ M,  GRUVER G A,  KUNZ H R;  US4307067-A   OSAKA OXYGEN IND CO LTD (OSAO);  OSAKA SANSO KOGYO K (OSAK-Non-standard)   TAGAWA T,  TANI J,  TOMINAGA S,  SUZUKI S,  KIKUCHI S;  US4370234-A   MARSLAND W P (MARS-Individual)   MARSLAND W P;  US4801356-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   GRASSO A P;  US5792572-A   INT FUEL CELLS CORP (ITFU);  CLC SRL (CLCC-Non-standard)   FOLEY P F,  LUCZAK F J,  PRESTON J L,  TEELING C R,  BREAULT R D,  FREDLEY R R,  SCHEFFLER G W;  US6376114-B1   INT FUEL CELLS LLC (ITFU)   BONVILLE L J,  CIPOLLINI N E,  GAROW J,  LESIEUR R R,  SZYDLOWSKI D F,  VANCE Z D,  WHEELER D J;  US7628847-B2   SENREQ LLC (SENR-Non-standard)   POPE G M,  GREEN J;  US8206490-B2 -- US3920419-A   REPUBLIC STEEL CORP (REPS)   SCHROEDER J W,  NASO A C;  US3961018-A   UTD AIR SPECIALISTS (UNAI-Non-standard)   WILLIAMSON W H;  US4259302-A   UNITED TECHNOLOGIES CORP (UNAC)   KATZ M,  GRUVER G A,  KUNZ H R;  US4307067-A   OSAKA OXYGEN IND CO LTD (OSAO);  OSAKA SANSO KOGYO K (OSAK-Non-standard)   TAGAWA T,  TANI J,  TOMINAGA S,  SUZUKI S,  KIKUCHI S;  US4370234-A   MARSLAND W P (MARS-Individual)   MARSLAND W P;  US4801356-A   INT FUEL CELLS CORP (ITFU);  TOSHIBA KK (TOKE)   GRASSO A P;  US5792572-A   INT FUEL CELLS CORP (ITFU);  CLC SRL (CLCC-Non-standard)   FOLEY P F,  LUCZAK F J,  PRESTON J L,  TEELING C R,  BREAULT R D,  FREDLEY R R,  SCHEFFLER G W;  US6376114-B1   INT FUEL CELLS LLC (ITFU)   BONVILLE L J,  CIPOLLINI N E,  GAROW J,  LESIEUR R R,  SZYDLOWSKI D F,  VANCE Z D,  WHEELER D J;  US7628847-B2   SENREQ LLC (SENR-Non-standard)   POPE G M,  GREEN J;  CN101511973-B -- CN1409879-A   YI J S (YIJS-Individual);  PUHALSKI J (PUHA-Individual)   YI J S,  PUHALSKI J;  US20050064255-A1