Areva T&D SA
43Patents
26Active
43Granted
48Portfolio score
Filing activity: Dec 20, 2002 → Dec 31, 2008 · 26 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7090176B2 | Articulated support with lateral movement for high-voltage or medium-voltage electrical plant | Electricity | 23 | Expired |
| US7563161B2 | Control device for actuating at least two items of switchgear in co-ordinated manner, one of which items performs interruption in a vacuum | Electricity | 15 | Active |
| US6917006B2 | Spring-driven mechanism for rectilinear displacement circuit breaker | Electricity | 14 | Expired |
| US7355369B2 | On-load transformer tap changing system | Electricity | 12 | Expired |
| US7199324B2 | High-voltage hybrid circuit-breaker | Electricity | 11 | Expired |
| US7825763B2 | Current transformer with rogowski type windings, comprising an association of partial circuits forming a complete circuit | Physics | 10 | Expired |
| US8013268B2 | Circuit breaker with a double acting circuit-breaking chamber and an inverted structure | Electricity | 10 | Active |
| US8013698B2 | Permanent-magnet magnetic actuator of reduced volume | Electricity | 10 | Active |
| US7161873B2 | Method of detecting and locating a source of partial discharge in an electrical apparatus | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8081407B2 | Compact disconnector circuit-breaker for an alternator | Electricity | 9 | Active |
| US7429710B2 | Three-position ground switch | Electricity | 8 | Expired |
| US8226428B2 | Electrical contact between pieces of high and medium voltage equipment, adapted for accommodating tilt | Electricity | 8 | Active |
| US7937985B2 | 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 | Electricity | 8 | Active |
| US7642480B2 | Actuating the contacts of an interrupting chamber in opposite directions via an insulating tube | Electricity | 7 | Active |
| US7183774B2 | Method of detecting partial discharges and diagnostic system for electrical apparatus | Physics | 7 | Expired |
| US7790997B2 | Switch unit having a circuit breaker and a disconnector with common drive means | Electricity | 6 | Active |
| US7236351B2 | Armoured station element articulated to the ground | Electricity | 6 | Expired |
| US7426100B2 | Drive kinematics in a hybrid circuit-breaker | Electricity | 5 | Active |
| US7775818B2 | Bus bar connection for a gas-insulated switchboard system | Electricity | 5 | Active |
| US7336461B2 | Method for determining the moment of closure of a circuit breaker on a high voltage line | Electricity | 4 | Expired |
| US7705262B2 | Alternator disconnector circuit-breaker by a servomotor | Electricity | 4 | Active |
| US7718913B2 | Actuation by cylindrical CAM of a circuit-breaker for an alternator | Electricity | 3 | Active |
| US8264803B2 | Alternator circuit-breaker with an inserted resistance | Electricity | 3 | Active |
| US7989704B2 | Electric insulator and a method for the production thereof | Electricity | 3 | Active |
| US7102866B2 | Power line protection | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.