Assignee
ALSTOM HOLDINGS
US42 patents
Top patents by PatentIndex Score
US6278179B1Aug 21, 2001
Power electronic device
ALSTOM HOLDINGS36 citations90
US6344686B1Feb 5, 2002
Power electronic component including cooling means
ALSTOM HOLDINGS23 citations88
US6302483B1Oct 16, 2001
Revolving seat, in particular for a rail vehicle
ALSTOM HOLDINGS43 citations86
US6337570B1Jan 8, 2002
Current loop comprising a test circuit
ALSTOM HOLDINGS8 citations70
US6332648B1Dec 25, 2001
Motion rotating seat particularly for a railway vehicle
ALSTOM HOLDINGS18 citations70
US6297079B1Oct 2, 2001
Method of electrically connecting IGBT transistor chips mounted on an integrated-circuit wafer
ALSTOM HOLDINGS14 citations69
US6279486B1Aug 28, 2001
Device for damping the transverse and hunting movements of a vehicle, and vehicle provided with such a device
ALSTOM HOLDINGS10 citations64
US6274843B1Aug 14, 2001
Installation for laser welding of overlapping parts
ALSTOM HOLDINGS8 citations64
US6581462B2Jun 24, 2003
Method and a device for detecting an internal arc in a metal-clad electrical link
ALSTOM HOLDINGS3 citations62
US6284993B1Sep 4, 2001
Ball-locked mechanism for inserting a closure resistor
ALSTOM HOLDINGS2 citations60
US6220177B1Apr 24, 2001
Bogie for railway vehicle and process for manufacturing same
ALSTOM HOLDINGS2 citations60
US6213027B1Apr 10, 2001
Railway vehicle bogie made of composite material and process for manufacturing such a bogie
ALSTOM HOLDINGS3 citations60
USD1028893SMay 28, 2024
Electric generator
ALSTOM HOLDINGS2 citations59
US6679535B2Jan 20, 2004
Safety wheel, method of manufacturing such a wheel and bogie equipped with such a wheel
ALSTOM HOLDINGS5 citations59
US6274451B1Aug 14, 2001
Method of fabricating a gate-control electrode for an IGBT transistor
ALSTOM HOLDINGS5 citations58
US12179815B2Dec 31, 2024
Computer implemented method for determining railway vehicle movement profile type of a railway vehicle movement profile and controller of a track circuit system
ALSTOM HOLDINGS0 citations53
US7213521B1May 8, 2007
Method for welding overlapping metal sheets and corresponding railway car body
ALSTOM HOLDINGS4 citations53
US6481280B1Nov 19, 2002
Method and a device for detecting an internal arc in a metal-clad electrical link
ALSTOM HOLDINGS1 citations52
US6328145B1Dec 11, 2001
Impact damping structure
ALSTOM HOLDINGS4 citations50
USD1023957SApr 23, 2024
Electric generator
ALSTOM HOLDINGS0 citations49
US12157507B2Dec 3, 2024
Method for controlling wheel deformation and associated device and system
ALSTOM HOLDINGS0 citations47
US12434745B2Oct 7, 2025
Articulation device for an articulated vehicle, corresponding vehicle and adjustment method
ALSTOM HOLDINGS0 citations46
US12250472B2Mar 11, 2025
Surveillance system for a road with alternating units and associated method
ALSTOM HOLDINGS0 citations46
US11951962B1Apr 9, 2024
Acceleration detection system for a vehicle and vehicle including a brake monitoring unit with acceleration detection system
ALSTOM HOLDINGS0 citations45
US12319173B2Jun 3, 2025
Insulating support assembly for a catenary adapted for powering an electrical vehicle, notably a tram or a trolleybus, and related catenary
ALSTOM HOLDINGS0 citations43
US12539894B2Feb 3, 2026
Frame structure for vehicle
ALSTOM HOLDINGS0 citations42
US12341442B2Jun 24, 2025
Voltage source converter and a method for operation thereof
ALSTOM HOLDINGS0 citations42
US12247703B2Mar 11, 2025
Anti-fire safety system for a vehicle having hydrogen stored on board, and related vehicle
ALSTOM HOLDINGS0 citations42
US12296696B2May 13, 2025
Power supply system and method of controlling such a power supply system
ALSTOM HOLDINGS0 citations37
US12431883B2Sep 30, 2025
Pulse width modulation system provided with synchronized control boards
ALSTOM HOLDINGS0 citations36
US12246759B2Mar 11, 2025
Method for controlling the occupancy of vehicle seats by passengers, and associated devices
ALSTOM HOLDINGS0 citations36
US12172120B2Dec 24, 2024
Particle-collecting device and vehicle equipped with such a device
ALSTOM HOLDINGS0 citations36
US11946752B2Apr 2, 2024
Local supervision module for a supervision infrastructure of a multimodal terrestrial transport network
ALSTOM HOLDINGS0 citations34
US12570335B2Mar 10, 2026
Chain of semi-trailer vehicles and associated articulated trainset
ALSTOM HOLDINGS0 citations33
US6215684B1Apr 10, 2001
Feed-through for high and medium voltage station
ALSTOM HOLDINGS0 citations32
US12304535B2May 20, 2025
Unlocking system, bogie comprising such a system and associated manufacturing method
ALSTOM HOLDINGS0 citations31
US12304537B2May 20, 2025
Railway carriage with vehicle monitoring system and associated monitoring method
ALSTOM HOLDINGS0 citations31
US12071057B2Aug 27, 2024
Comfort equipment for a public transport vehicle, comprising a cantilever table
ALSTOM HOLDINGS0 citations31
US12565245B2Mar 3, 2026
Railway vehicle with collision-protecting crushable areas
ALSTOM HOLDINGS0 citations30
US12397831B2Aug 26, 2025
Train coupler, system and method for automatic coupling trains, and related train
ALSTOM HOLDINGS0 citations30
US12172688B2Dec 24, 2024
System and method for managing the movement of a vehicle along a transport network
ALSTOM HOLDINGS0 citations30
US11912177B2Feb 27, 2024
Vehicle for transporting passengers having a variable number of seats
ALSTOM HOLDINGS0 citations30