| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 41 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Vehicle brake control systems | |
| #2 | Cyclically operating valves | |
| #3 | Pumps | |
| #4 | Gearing | |
| #5 | Venting or aerating devices | |
| #6 | Vehicle suspension arrangements | |
| #7 | Vehicle drive control systems | |
| #8 | Railway brakes | |
| #9 | Pipes | |
| #10 | Indexing scheme relating to hinges |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ewald Pekrul | 13 |
| #2 | Edgar Meissner | 4 |
| #3 | Walter Ortmann | 4 |
| #4 | Erwin Keese | 2 |
| #5 | Hermann Kosmalski | 2 |
| #6 | Albin Habeck | 2 |
| #7 | Hermann Voigt | 2 |
| #8 | Nat Neubeck Karl Dr Rer | 2 |
| #9 | Dipl-Phys Neubeck Karl Dr | 1 |
| #10 | Wilhelm Bachmann | 1 |