Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398115 | Temperature probe using a plate of quartz | Jean-Jacques Gagnepain, Daniel Hauden, Roger Coquerel | 1983-08-09 |
| 4220888 | Double and triple rotated quartz plates for surface waves | Jean-Jacques Gagnepain, Daniel Hauden, Monique Michel | 1980-09-02 |