Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666035 | Direct current actuator control system using pulse-width modulation in four bipolar transistors connected in H-manner | Michel Marceau | 1997-09-09 |
| 4654776 | Cut-off amplifier | — | 1987-03-31 |
| 4186301 | Automatic focus control for a microscope | Pierre Roche, Jean Thenard | 1980-01-29 |