Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4988861 | Device for measuring the energy of an electric arc | Roland Hakoun | 1991-01-29 |
| 4688891 | Optical device for sealing a container and process for detecting an attempted burglary or break-in with the aid of the device | Michel Carratt, Roland Hakoun, Jean-Joseph Maurel, Serge Pecastaings | 1987-08-25 |