| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 21 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Packaging and shipping | |
| #3 | Mechanical elements | |
| #4 | Chemical engineering | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Soldering, welding and flame cutting | |
| #2 | Transport or storage devices | |
| #3 | Compressed gas holders | |
| #4 | Chemical or physical processes | |
| #5 | Forging | |
| #6 | Furnaces | |
| #7 | Pipes | |
| #8 | Separation | |
| #9 | Heat-exchanger with contact | |
| #10 | Heat-exchanger without contact |