Assignee
ALSTHOM SA
FR26 patents
Top patents by PatentIndex Score
US4942824AJul 24, 1990
Articulated coupling for two rail vehicles
ALSTHOM SA47 citations88
US4932617AJun 12, 1990
System for transmitting broadband data and/or instructions between a moving element and a control station
ALSTHOM SA33 citations88
US4896850AJan 30, 1990
Railroad switch motor system
ALSTHOM SA23 citations88
US4907645AMar 13, 1990
Device for ventilating rheostats and/or fluid radiators in a locomotive
ALSTHOM SA36 citations87
US4862023AAug 29, 1989
Synchronous machine with superconducting windings
ALSTHOM SA25 citations86
US4910626AMar 20, 1990
Current limiter
ALSTHOM SA22 citations81
US4769276ASep 6, 1988
Mica-coated electrically insulating and fire-proofing adhesive tape especially suitable for electrical or optical fiber cable
ALSTHOM SA37 citations81
US4970483ANov 13, 1990
Coil-like conductor of sintered superconducting oxide material
ALSTHOM SA19 citations80
US4954479ASep 4, 1990
Composite superconducting strand having a high critical temperature, and method of manufacture
ALSTHOM SA19 citations79
US4880946ANov 14, 1989
High-or medium-tension compressed-gas circuit breaker taking circuit-breaking energy from the arc
ALSTHOM SA7 citations74
US4668872AMay 26, 1987
Electronic control system for a diesel engine, generator and electric motor power train
ALSTHOM SA21 citations74
US4940961AJul 10, 1990
Braking resistor for a high tension electrical network
ALSTHOM SA7 citations73
US4855859AAug 8, 1989
Detection device for detecting transitions to the normal state in a superconducting winding, in particular for generating electricity, and a protection device for protecting such a winding
ALSTHOM SA13 citations70
US4873531AOct 10, 1989
Identification transponder for use when a vehicle passes a given point
ALSTHOM SA14 citations69
US4850652AJul 25, 1989
Feed circuit for railway braking systems
ALSTHOM SA7 citations69
US4909635AMar 20, 1990
Static device for homogenizing a flowing fluid
ALSTHOM SA17 citations66
US4968875ANov 6, 1990
Cell for a medium or high tension metaclad station, and a station made up of such cells
ALSTHOM SA3 citations63
US4952759AAug 28, 1990
Control device for controlling a circuit breaker
ALSTHOM SA6 citations63
US4945198AJul 31, 1990
High tension circuit breaker with low operating energy
ALSTHOM SA5 citations63
US4884166ANov 28, 1989
Electricity station
ALSTHOM SA6 citations62
US4918268AApr 17, 1990
Arc-rotating magnetic blast coil for the contact element of an electric switch
ALSTHOM SA8 citations61
US4896814AJan 30, 1990
Method of welding inside a groove machined in a solid steel part, and utilization of the method for repairing a cracked rotor
ALSTHOM SA17 citations60
US4860418AAug 29, 1989
Method of assembling a rotor of a steam turbine consttuted by disks shrunk onto a shaft
ALSTHOM SA2 citations60
US4859071AAug 22, 1989
Homogenizing device for a fluid carried in a pipe
ALSTHOM SA15 citations59
US4748048AMay 31, 1988
Method of insulating electrical conductors by impregnation
ALSTHOM SA4 citations55
US5050287ASep 24, 1991
Fork for use in assembling a rotor of a steam turbine constituted by disks shrunk onto a shaft
ALSTHOM SA0 citations49