Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6133573 | Method and device for determining a gas volume concentration | François Grasdepot, Juan Pedro Silveira | 2000-10-17 |
| 6112601 | Method and apparatus for measuring the flow rate of a flowing fluid | — | 2000-09-05 |
| 6003385 | Ultrasound apparatus for measuring the flow speed of a fluid | Robert De Vanssay, Jean Simon, Lionel Beneteau | 1999-12-21 |
| 5585716 | Multiple stage frequency modulated circuit | Michel Gervais, Denise Schang | 1996-12-17 |
| 5574228 | System for measuring fluid oscillator signals | — | 1996-11-12 |
| 5493212 | Electricity meter with variable gain sigma-delta converter | Michel Gervais, Denise Schang | 1996-02-20 |
| 4507624 | Voltage-to-frequency converters | Anthony J. Ley | 1985-03-26 |
| 4494068 | Measurement shunt with compensation for induced error voltages | Antony Ley, Roland Allesch | 1985-01-15 |
| 4409545 | Electronic measuring device for a polyphase network, in particular for the measurement of power | — | 1983-10-11 |