| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Basic materials chemistry | |
| #3 | Chemical engineering | |
| #4 | Medical technology | |
| #5 | Measurement | |
| #6 | Transport | |
| #7 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Working-up peat | |
| #2 | Centrifuges | |
| #3 | Dentistry | |
| #4 | Milling | |
| #5 | Drying solid materials by removing liquid | |
| #6 | Hand carried bags | |
| #7 | Parachutes | |
| #8 | Separation | |
| #9 | Measuring distances |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hopper John-Georges | 9 |
| #2 | Hopper John Georges | 5 |
| #3 | Rosenthal Pierre | 2 |