| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy | |
| #3 | Basic communication technologies | |
| #4 | Control | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring electric variables | |
| #2 | Code conversion | |
| #3 | Time-interval measuring | |
| #4 | Electric switches | |
| #5 | Pipes | |
| #6 | Pulse technique | |
| #7 | Traffic control systems | |
| #8 | Electrically-conductive connections |