| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 48 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Control | |
| #5 | Machine tools | |
| #6 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Vehicle brake control systems | |
| #2 | Clutches and brakes | |
| #3 | Servomotors | |
| #4 | Railway brakes | |
| #5 | Unspecified technologies | |
| #6 | Venting or aerating devices | |
| #7 | Pistons and sealings | |
| #8 | Systems controlling non-electric variables | |
| #9 | Sawing | |
| #10 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Altmeppen J | 1 |