Patents
Patents for H02H - Emergency protective circuit arrangements (160)
01/2003
01/16/2003CA2454778A1 System and method for managing object based clusters
10/2002
10/10/2002WO2002080330A1 Offset pathway arrangements for energy conditioning
10/10/2002CA2434189A1 Offset pathway arrangements for energy conditioning
08/2002
08/22/2002WO2002065606A2 Energy pathway arrangements for energy conditioning
08/22/2002CA2428833A1 Energy pathway arrangements for energy conditioning
07/2002
07/11/2002US20020089812 Energy pathway arrangement
06/2002
06/11/2002US6404608 Overcurrent protection device
06/06/2002WO2002045233A1 Energy pathway arrangement
02/2002
02/06/2002CN1078967C Line protection system for optical interface
04/2000
04/26/2000CN1251717A Secure packet radio network
03/2000
03/15/2000CN1050459C Circuit protection arrangement
03/15/2000CN1050458C Overcurrent protection device
11/1999
11/24/1999EP0958682A1 Secure packet radio network
09/1999
09/14/1999US5953194 Arrangement for protecting telecommunications equipment from voltage transients
11/1998
11/18/1998CN1199262A Transmission line protection system
10/1998
10/06/1998US5818333 Of a starter mechanism
09/1998
09/15/1998US5808327 AC controller
08/1998
08/13/1998WO1998035474A1 Secure packet radio network
12/1997
12/31/1997CN1169049A Capacity judging apparatus of capacitor in power converter outputting three level voltage
05/1997
05/14/1997EP0717887B1 A.c. controller
04/1997
04/29/1997US5625519 Circuit protection arrangement
12/1996
12/18/1996EP0550554B1 Circuit protection device
12/11/1996EP0552273B1 Circuit protection arrangement
07/1996
07/17/1996EP0552265B1 Overcurrent protection device
06/1996
06/26/1996EP0717887A1 A.c. controller
04/1996
04/30/1996US5513059 Arrangement for protecting telecommunications equipment from voltage transients
08/1995
08/30/1995EP0669049A1 Switching arrangement
05/1995
05/16/1995US5416663 Arrangement for protecting telecommunications equipment from voltage transients
03/1995
03/16/1995WO1995007571A1 A.c. controller
03/16/1995CA2171187A1 Ac power controller
07/1994
07/13/1994CN1089403A Switching arrangement
05/1994
05/26/1994WO1994011936A1 Switching arrangement
05/26/1994CA2148362A1 Switching arrangement
07/1993
07/28/1993EP0552273A1 Circuit protection arrangement.
07/28/1993EP0552265A1 Overcurrent protection device.
07/14/1993EP0550554A1 Circuit protection device.
05/1992
05/13/1992CN1061114A Circuit protection arrangement
04/1992
04/29/1992CN1060744A Overcurrent protection device
04/16/1992WO1992006523A1 Circuit protection device
04/13/1992WO1992007403A1 Overcurrent protection device
04/13/1992WO1992007402A1 Circuit protection arrangement
04/13/1992CA2092999A1 Overcurrent protection device
04/13/1992CA2092902A1 Circuit protection arrangement
10/1991
10/22/1991CA1291227C Capacitor circuit interruption
09/1990
09/05/1990EP0164407B1 Shock hazard protection system
04/1990
04/10/1990EP0277961A4 Capacitor circuit interruption.
04/1989
04/12/1989EP0310798A2 Shock harzard protection system
08/1988
08/17/1988EP0277961A1 Capacitor circuit interruption
12/1987
12/17/1987WO1987007780A1 Capacitor circuit interruption
09/1987
09/22/1987EP0164407A4 Shock hazard protection system.
04/1987
04/01/1987EP0215793A1 Overheating alarm
01/1986
01/03/1986WO1986000179A1 Overheating alarm
12/1985
12/18/1985EP0164407A1 Shock hazard protection system.
06/1985
06/20/1985WO1985002724A1 Shock hazard protection system
02/1984
02/21/1984CA1162632A1 Circuit interrupter with front panel numeric display
09/1980
09/09/1980CA1085450A1 Voltage surge protector
11/1979
11/20/1979US4175277 Voltage surge protector
01/1977
01/18/1977US4004242 Apparatus for supplying symmetrically limited bidirectional signal currents
06/1976
06/29/1976US3967207 Amplifier with over-current protection
03/1976
03/09/1976US3943427 Apparatus for protecting the thyristors of a high-voltage controlled converter from overvoltage
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