Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4916317 | Method and a device for detecting changes in a surface state and for monitoring the surface state | Jean-Marie Gabriel, Louis Cognet, Gilles Courtois, Nadine M. R. Courtois | 1990-04-10 |