Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4470707 | Electronic setting for analog timepiece | Jean P. Chambon, Paul Grand-Chavin, Jean P. Migeon, Michel Plancon | 1984-09-11 |
| 4445785 | Electronic time setting for a quartz analog watch | Jean P. Chambon, Jean-Francois Dufay, Paul Grand Chavin, Louis Vernay | 1984-05-01 |