| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Chemical engineering | |
| #3 | Machines | |
| #4 | Basic materials chemistry | |
| #5 | Measurement | |
| #6 | Foods and drinks | |
| #7 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Presses | |
| #2 | Drying solid materials by removing liquid | |
| #3 | Milling | |
| #4 | Separating solids | |
| #5 | Fuels | |
| #6 | Measuring volume | |
| #7 | Sucrose production | |
| #8 | Separation | |
| #9 | Mixing | |
| #10 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Conreuer Gustave | 1 |
| #2 | Guilbert Felix | 1 |