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La Defense, France

Areva T&d Sa

USPTO Granted Patents = 43

% Expired Patents = 62.8

EPO Patents = 7

Trademarks = 3

Forward Citations = 231

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81 inventors (with patents filed for the assignee):

Jean-Pierre Dupraz (5 out of 30 patents)

Jean-Luc Bessede (5 out of 8 patents)

Denis Frigiere (4 out of 10 patents)

4. Jean-Marc Willieme (4 out of 19 patents)

5. Xavier Allaire (4 out of 6 patents)

6. Yannick Kieffel (3 out of 19 patents)

7. Joël Ozil (3 out of 7 patents)

8. Christophe Creusot (3 out of 7 patents)

9. Jean-Luc Bourgeois (3 out of 4 patents)

10. Christian Lindner (3 out of 5 patents)

11. Raja Kuppuswamy (3 out of 3 patents)

12. Michel Perret (3 out of 53 patents)

13. Alain Girodet (2 out of 10 patents)

14. Wolfgang Grieshaber (2 out of 14 patents)

15. Gwenael Marquezin (2 out of 3 patents)

Core Competencies:

Circuit Breaker

Electrical Switchgear

High Voltage

Medium Voltage

Gas Insulated

Dielectric Oil

Power Protection

Partial Discharge

Insulating Gas

Capacitor

Transformer

Disconnector

43 patents: Sort by Forward Citations

1. 8530774 - High voltage circuit breaker with improved gas exhaust (2013-09-10),

2. 8309871 - Apparatus for controlling electrical switchgear (2012-11-13),

3. 8264803 - Alternator circuit-breaker with an inserted resistance (2012-09-11),

4. 8226428 - Electrical contact between pieces of high and medium voltage equipment, adapted for accommodating tilt (2012-07-24),

5. 8081407 - Compact disconnector circuit-breaker for an alternator (2011-12-20),

6. 8063335 - Gas exhaust for circuit breaker (2011-11-22),

7. 8044318 - Interrupting chamber of a circuit-breaker having two compression volumes (2011-10-25),

8. 8044317 - Circuit breaker having a plurality of breaker chambers arranged in parallel, with a common transmission and reduced length (2011-10-25),

9. 8013698 - Permanent-magnet magnetic actuator of reduced volume (2011-09-06),

10. 8013268 - Circuit breaker with a double acting circuit-breaking chamber and an inverted structure (2011-09-06),

11. 7989726 - Electrical device containing insulating gas under pressure and including a composite insulator provided with a window for observing contacts (2011-08-02),

12. 7989704 - Electric insulator and a method for the production thereof (2011-08-02),

13. 7937985 - Checking apparatus for checking operation of a densimeter for medium-voltage and high-voltage electrical equipment, and a method of checking operation of a densimeter (2011-05-10),

14. 7915548 - Combined circuit breaker and disconnector for an alternator with actuation by an assembly of a main shaft and secondaries shafts (2011-03-29),

15. 7833440 - High performance dielectric oil and the use thereof in high voltage electrical equipment (2010-11-16),

Company Overview

Areva T&D SA, headquartered in La Defense, France, specializes in the development and manufacturing of advanced electrical equipment and solutions. The company focuses on high voltage circuit breakers, electrical switchgear, and gas insulated switchboards, catering to the needs of power utilities and industrial sectors. Its expertise extends to current transformers, dielectric oil, and partial discharge detection technologies, positioning Areva T&D as a key player in the medium voltage equipment market, contributing to the reliability and efficiency of electrical networks.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

43 Patents

#2 in La Defense

#542 in France

#16,047 in the World

La Defense, France

Areva T&d Sa

Forward Citations = 231

81 inventors:

Jean-Pierre Dupraz (5 out of 30 patents)

Jean-Luc Bessede (5 out of 8 patents)

Denis Frigiere (4 out of 10 patents)

4. Jean-Marc Willieme (4 out of 19 patents)

5. Xavier Allaire (4 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Areva T&d Sa. Retrieved from https://idiyas.com/company/areva-t-and-d-sa

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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