Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5604437 | Device for measuring circuit breaker wear | Lionel Lucot | 1997-02-18 |
| 5552978 | Device for supplying a voltage to an electronic circuit, in particular an electronic circuit associated with a current sensor disposed on an electrical line | — | 1996-09-03 |
| 5089931 | Safety device for electrical apparatus containing a dielectric gas, in particular circuit breakers or voltage-droppers for measurement purposes | Edmond Thuries, Jean-Pierre Dupraz, Jean-Marc Willieme, Joseph Martin, Yves Perrusset +1 more | 1992-02-18 |
| 5073747 | Feedback system control device and applications in amplifiers and servomechanisms | Jean-Pierre Dupraz | 1991-12-17 |
| 5068598 | Tension potential measuring circuit with selected time constant | — | 1991-11-26 |
| 4943765 | Circuit for measuring voltages in a three-phase installation, in particular an installation of the metalclad type | Jean-Pierre Dupraz | 1990-07-24 |