| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 10 | |
| #2 | Germany | 6 | |
| #3 | Switzerland | 3 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Civil engineering | |
| #3 | Machine tools | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Sewers | |
| #2 | Pumps | |
| #3 | Rotary-pistons | |
| #4 | Non-positive-displacement pumps | |
| #5 | Siphons | |
| #6 | Presses | |
| #7 | Servomotors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Zellinger Fritz Ing | 11 |
| #2 | Zellinger Hans Ing | 8 |
| #3 | Fritz Zellinger Ing | 3 |
| #4 | Hans Zellinger | 3 |
| #5 | Fritz Zellinger | 3 |
| #6 | Hans Zellinger Ing | 3 |
| #7 | Zellinger Fritz | 1 |
| #8 | Zellinger Hans | 1 |
| #9 | Zellinger Ing Fritz | 1 |
| #10 | Zellinger Ing Hans | 1 |