| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Canada | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | France | 2 | |
| #5 | Japan | 2 | |
| #6 | South Africa | 2 | |
| #7 | Australia | 1 | |
| #8 | Finland | 1 | |
| #9 | Hong Kong | 1 | |
| #10 | Hungary | 1 | |
| #11 | Poland | 1 | |
| #12 | Romania | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Control | |
| #3 | Civil engineering | |
| #4 | Basic communication technologies | |
| #5 | Computer technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gruere Yves | 9 |
| #2 | Demichel Laurent | 9 |
| #3 | Le Gall Herve | 7 |
| #4 | Demarais Gerard | 4 |
| #5 | Gall Herve Le | 3 |
| #6 | Putteman Claude | 2 |
| #7 | Barros Jose | 2 |
| #8 | Demarais Gerard G | 1 |
| #9 | Demichel Laurent A | 1 |
| #10 | Laurent Demichel | 1 |
| Publication | Filing date | Title |
|---|---|---|
| FR2763184A1 | Validation device for digital messages, applicable in particular to rail traffic regulation systems | |
| US5974737A | Self-opening entry device for a controlled access area | |
| FR2704329A1 | Security system with microprocessor, applicable in particular to the field of rail transport. |