Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Reexamination Certificate
2005-10-11
2005-10-11
Crepeau, Jonathan (Department: 1746)
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
C429S006000, C429S006000
Reexamination Certificate
active
06953630
ABSTRACT:
A respective bipolar junction transistor is coupled across pairs of fuel cells in a fuel cell stack to monitor the voltage across each fuel cell pairs for a drop in voltage below a threshold voltage. A respective optoisolator coupled to each of the transistors produces a digital signal corresponding to the status of the respective pair of fuel cells. An “AND” circuit produces a single digital signal corresponding to the status of one or more pairs of fuel cells.
REFERENCES:
patent: 2988656 (1961-06-01), Grobel
patent: 3061658 (1962-10-01), Blackmer
patent: 3317348 (1967-05-01), Winsel
patent: 3383580 (1968-05-01), Wallace, Jr.
patent: 3452347 (1969-06-01), Stimson
patent: 3553026 (1971-01-01), Winsel
patent: 3580741 (1971-05-01), Hovious et al.
patent: 3600234 (1971-08-01), Massie, Jr.
patent: 3615842 (1971-10-01), Craft et al.
patent: 3666562 (1972-05-01), Sprengel
patent: 3697325 (1972-10-01), Baude
patent: 3775282 (1973-11-01), Craft et al.
patent: 3808534 (1974-04-01), Summers et al.
patent: 3850696 (1974-11-01), Summers et al.
patent: 3891465 (1975-06-01), Muto et al.
patent: 3935028 (1976-01-01), Strasser et al.
patent: 3949545 (1976-04-01), Chihara
patent: 3969697 (1976-07-01), Iwasa et al.
patent: 3996579 (1976-12-01), Dahl
patent: 4037024 (1977-07-01), Landau
patent: 4078893 (1978-03-01), Gilman et al.
patent: 4085255 (1978-04-01), Grave et al.
patent: 4197675 (1980-04-01), Kelly
patent: 4243731 (1981-01-01), Cheron
patent: 4310606 (1982-01-01), Maida
patent: 4424491 (1984-01-01), Bobbett et al.
patent: 4729931 (1988-03-01), Grimble
patent: 4816768 (1989-03-01), Champlin
patent: 4826741 (1989-05-01), Aldhart et al.
patent: 4829290 (1989-05-01), Ford
patent: 5074137 (1991-12-01), Harris et al.
patent: 5132663 (1992-07-01), Strobl et al.
patent: 5139894 (1992-08-01), Mizuno et al.
patent: 5199396 (1993-04-01), Shelef et al.
patent: 5392873 (1995-02-01), Masuyama et al.
patent: 5397655 (1995-03-01), Bette et al.
patent: 5478662 (1995-12-01), Strasser
patent: 5482790 (1996-01-01), Yamada et al.
patent: 5503944 (1996-04-01), Meyer et al.
patent: 5631532 (1997-05-01), Azuma et al.
patent: 5763113 (1998-06-01), Meltser et al.
patent: 5869952 (1999-02-01), Fisher et al.
patent: 5939218 (1999-08-01), Mizuno
patent: 5945229 (1999-08-01), Meltser
patent: 6028414 (2000-02-01), Chouinard et al.
patent: 6048473 (2000-04-01), Denda et al.
patent: 6066408 (2000-05-01), Vitale et al.
patent: 6093500 (2000-07-01), Margiott et al.
patent: 6093502 (2000-07-01), Carlstrom, Jr. et al.
patent: 6124054 (2000-09-01), Gorman et al.
patent: 6140820 (2000-10-01), James
patent: 6159626 (2000-12-01), Keskula et al.
patent: 6162556 (2000-12-01), Vollmar et al.
patent: 6171718 (2001-01-01), Murach et al.
patent: 6242120 (2001-06-01), Herron
patent: 6290594 (2001-09-01), Osborne
patent: 6387556 (2002-05-01), Fuglevand et al.
patent: 6423434 (2002-07-01), Pratt et al.
patent: 6426158 (2002-07-01), Pratt et al.
patent: 6455181 (2002-09-01), Hallum
patent: 6461751 (2002-10-01), Boehm et al.
patent: 6492043 (2002-12-01), Knights et al.
patent: 6497971 (2002-12-01), Reiser
patent: 6519510 (2003-02-01), Margiott et al.
patent: 6558826 (2003-05-01), Walsh
patent: 6569549 (2003-05-01), Sawyer
patent: 6677066 (2004-01-01), Jansen et al.
patent: 2001/0014415 (2001-08-01), Iio et al.
patent: 2001/0018142 (2001-08-01), Kato et al.
patent: 2002/0076583 (2002-06-01), Reiser et al.
patent: 2002/0094467 (2002-07-01), Nonobe et al.
patent: 2002/0094468 (2002-07-01), Muira et al.
patent: 2002/0094469 (2002-07-01), Yoshizumi et al.
patent: 2003/0003333 (2003-01-01), Haridos
patent: 2003/0022031 (2003-01-01), Manery
patent: 2003/0022036 (2003-01-01), Parr
patent: 2003/0022037 (2003-01-01), Parr et al.
patent: 2003/0022038 (2003-01-01), Vaal et al.
patent: 2003/0022041 (2003-01-01), Barton et al.
patent: 2003/0022042 (2003-01-01), Wells et al.
patent: 2003/0022045 (2003-01-01), Wells et al.
patent: 2003/0022050 (2003-01-01), Barton et al.
patent: 136 187 (1985-04-01), None
patent: 0 917 225 (1999-05-01), None
patent: 982 788 (2000-03-01), None
patent: 1 018 744 (2000-07-01), None
patent: 1 037 041 (2000-09-01), None
patent: 1 091 436 (2000-12-01), None
patent: 1 091 437 (2001-04-01), None
patent: 1 111 703 (2001-06-01), None
patent: 1 187 241 (2002-03-01), None
patent: 1223941 (1971-03-01), None
patent: 1396157 (1975-06-01), None
patent: 60-158557 (1985-08-01), None
patent: 63-029460 (1988-02-01), None
patent: 64-089155 (1989-04-01), None
patent: 6-243886 (1994-09-01), None
patent: 07-169481 (1995-07-01), None
patent: 08-088014 (1996-04-01), None
patent: 8-250139 (1996-09-01), None
patent: WO 91/19328 (1991-12-01), None
patent: WO 94/09519 (1994-04-01), None
patent: WO 99/28985 (1999-06-01), None
patent: WO 00/02282 (2000-01-01), None
patent: WO 00/74162 (2000-12-01), None
patent: WO 01/26173 (2001-04-01), None
patent: WO 01/26174 (2001-04-01), None
patent: WO 01/43216 (2001-06-01), None
patent: WO 02/23658 (2002-03-01), None
“Semiconductor Device,” Encyclopedia Britannica [online] [retrieved on Feb. 4, 2004]. Retrieved from the Internet:<URL: http://www.search.eb.com/eb/article?eu=108510>.
Abstract of EP 1018774 A1,esp@cenetdatabase, Jul. 12, 2000.
Abstract of JP 2-078159,esp@cenetdatabase, Mar. 19, 1990.
Abstract of JP 4-115467,esp@cenetdatabase, Apr. 16, 1992.
Abstract of JP 4-220955,esp@cenetdatabase, Apr. 11, 1992.
Abstract of JP 6-084536,esp@cenetdatabase, Mar. 25, 1994.
Abstract of JP 7-325075,esp@cenetdatabase, Dec. 12, 1995.
Abstract of JP 8-162138,esp@cenetdatabase, Jun. 26, 1996.
Abstract of JP 8-185879,esp@cenetdatabase, Jul. 16, 1996.
Abstract of JP 60-212966,esp@cenetdatabase, Oct. 25, 1985.
Abstract of JP 63-241876,esp@cenetdatabase, Oct. 7, 1988.
Abstract of JP 2000-009685,esp@cenetdatabase, Jan. 14, 2000.
Ballard Power Systems Inc.
Crepeau Jonathan
Hillier Kerry
Seed IP Law Group PLLC
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