For the Inventor, By the Inventor

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Limoges, France

Legrand

USPTO Granted Patents = 55

% Expired Patents = 10.9

EPO Patents = 11

Trademarks = 2

Forward Citations = 950

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61 inventors (with patents filed for the assignee):

Jean-Pierre Cousy (6 out of 10 patents)

Bertrand Decore (6 out of 11 patents)

Francois Loisel (6 out of 6 patents)

4. Jean-Pierre Barriuso (5 out of 5 patents)

5. Patrick Hauchard (4 out of 4 patents)

6. Daniel Paulin (4 out of 4 patents)

7. Francois Sarton (4 out of 4 patents)

8. Yvon Buard (3 out of 7 patents)

9. Alain Baillet (3 out of 3 patents)

10. Louis Bessaguet (3 out of 3 patents)

11. Gerard Roby (3 out of 4 patents)

12. Jean-Francois Astier (3 out of 3 patents)

13. Marc Gosse (3 out of 3 patents)

14. Roger Parlatore (3 out of 5 patents)

15. Alain Jadaud (2 out of 8 patents)

Core Competencies:

Cable Trays

Dimmers

Electronic Switches

Electrical Connectors

Marker Devices

Trunking Accessories

Support Systems

Power Supply

Control Devices

Fastening Devices

Vibration Assistance

Tooling Solutions

55 patents: Sort by Forward Citations

1. 7338315 - Closure device with a movable flap (2008-03-04),

2. 7055786 - Device for fixing mesh cable trays to a support bracket (2006-06-06),

3. 6976601 - Electrical equipment box with flexible fixing arrangements (2005-12-20),

4. 6936953 - Use of a piezo-active device and an appliance and a system including it (2005-08-30),

5. 6935001 - Tie (2005-08-30),

6. 6874969 - Trucking angle accessory (2005-04-05),

7. 6855884 - Protection member for a mesh cable tray, and a tray including said member (2005-02-15),

8. D430854 - Hand-held dimmer (2000-09-12),

9. 6060793 - Electronic switch (2000-05-09),

10. 6057654 - Method and apparatus for automatically controlling a lighting load (2000-05-02),

11. 6010361 - Electrical unit for plugging into a mount, in particular a (2000-01-04),

12. 6003390 - Tactile sensor, in particular for electrical equipment (1999-12-21),

13. 5982051 - Electronic two-way switching circuit (1999-11-09),

14. 5981872 - Method and device for more firmly securing to trunking an accessory of (1999-11-09),

15. 5969587 - Auxiliary switch for circuit-breaker and corresponding circuit-breaker (1999-10-19),

Company Overview

Legrand is a global specialist in electrical and digital building infrastructures, headquartered in Limoges, France. The company focuses on developing and manufacturing a wide range of electrical equipment, including cable trays, dimmers, electronic switches, and electrical connectors. Legrand also offers innovative solutions in marker devices, trunking accessories, support systems, and power supply, catering to both residential and commercial markets. Its commitment to sustainability and energy efficiency positions it as a leader in the electrical industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

55 Patents

#2 in Limoges

#438 in France

#12,903 in the World

Limoges, France

Legrand

Forward Citations = 950

61 inventors:

Jean-Pierre Cousy (6 out of 10 patents)

Bertrand Decore (6 out of 11 patents)

Francois Loisel (6 out of 6 patents)

4. Jean-Pierre Barriuso (5 out of 5 patents)

5. Patrick Hauchard (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Legrand. Retrieved from https://idiyas.com/company/legrand

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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