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Saint-Ouen-sur-Seine, France

Alstom Holdings

USPTO Granted Patents = 48

% Expired Patents = 2.1

CIPO Patents = 34

EPO Patents = 262

Trademarks = 25

Forward Citations = 86

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215 inventors (with patents filed for the assignee):

Jean Marmonier (3 out of 13 patents)

Pascal Poisson (2 out of 3 patents)

Alain Landrot (2 out of 6 patents)

4. Bernard Dabezies (2 out of 2 patents)

5. Pascal Delroise (2 out of 2 patents)

6. Michel Mermet-Guyennet (2 out of 3 patents)

7. Nicolas Changey (2 out of 2 patents)

8. Alain Petitbon (2 out of 2 patents)

9. Sophie Crouzy (2 out of 2 patents)

10. Eric Ranchy (2 out of 2 patents)

11. Amandine Seve (2 out of 2 patents)

12. Gaël Martinez (2 out of 2 patents)

13. Torbjörn Trostén (2 out of 2 patents)

14. Bastian Simoni (1 out of 4 patents)

15. Johnny Holmberg (1 out of 10 patents)

Core Competencies:

Auxiliary Power Distribution

Vehicle Cooling Device

Railway Vehicle Position Estimation

Pulse Width Modulation

Collision Protection

Power Supply Control

Hydrogen Safety Systems

Vehicle Monitoring

Seating Control Methods

Impact Damping Structures

Electric Generators

Laser Welding Installation

48 patents: Sort by Forward Citations

1. 12764864 - Current sensor for a printed circuit board (2026-10-13),

2. 12703314 - System and method for distributing auxiliary power to loads onboard of a train, and train comprising such a system (2026-08-11),

3. 12698015 - Device for cooling a component intended to be fitted to a vehicle and associated vehicle (2026-08-04),

4. 12680830 - Method and system for estimating the position of a railway vehicle travelling along a railway line, and railway vehicle comprising such system (2026-07-14),

5. 12651977 - Pulse width modulation system and a method in relation thereto (2026-06-09),

6. 12606028 - Method for detecting a lowering of a current collector of a vehicle (2026-04-21),

7. 12570335 - Chain of semi-trailer vehicles and associated articulated trainset (2026-03-10),

8. 12565245 - Railway vehicle with collision-protecting crushable areas (2026-03-03),

9. 12539894 - Frame structure for vehicle (2026-02-03),

10. 12434745 - Articulation device for an articulated vehicle, corresponding vehicle and adjustment method (2025-10-07),

11. 12431883 - Pulse width modulation system provided with synchronized control boards (2025-09-30),

12. 12397831 - Train coupler, system and method for automatic coupling trains, and related train (2025-08-26),

13. 12341442 - Voltage source converter and a method for operation thereof (2025-06-24),

14. 12319173 - Insulating support assembly for a catenary adapted for powering an electrical vehicle, notably a tram or a trolleybus, and related catenary (2025-06-03),

15. 12304537 - Railway carriage with vehicle monitoring system and associated monitoring method (2025-05-20),

Company Overview

Alstom Holdings is a global leader in the transportation sector, specializing in the design and manufacture of rail transport systems, including trains, signaling, and infrastructure. The company focuses on sustainable mobility solutions, integrating advanced technologies to enhance the efficiency and safety of rail networks. With a strong presence in Europe and expanding operations worldwide, Alstom is committed to innovation in transportation, contributing to the development of smart and eco-friendly public transit systems.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

48 Patents

#1 in Saint-Ouen-sur-Seine

#489 in France

#14,561 in the World

Saint-Ouen-sur-Seine, France

Alstom Holdings

Forward Citations = 86

215 inventors:

Jean Marmonier (3 out of 13 patents)

Pascal Poisson (2 out of 3 patents)

Alain Landrot (2 out of 6 patents)

4. Bernard Dabezies (2 out of 2 patents)

5. Pascal Delroise (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Alstom Holdings. Retrieved from https://idiyas.com/company/alstom-holdings

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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