| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 11 | |
| #2 | Switzerland | 10 | |
| #3 | Spain | 3 | |
| #4 | Canada | 2 | |
| #5 | Denmark | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Siemen Otto | 15 |
| #2 | Hinsch Johannes | 13 |
| #3 | Otto Siemen | 8 |
| #4 | Johannes Hinsch | 8 |
| #5 | Verzicht | 1 |
| #6 | Otto Simens | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ES209221A1 | Improvements in autoaspiratory centrifugal pumps (Machine-translation by Google Translate, not legally binding) | |
| ES144594A1 | A pump for liquids with a blade wheel. | |
| ES114623A1 | Friction pump. | |
| CA335848A | Rotary pump | |
| CA306637A | Rotary pump |