| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | United States | 4 | |
| #3 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Non-positive-displacement pumps | |
| #2 | Steam turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ruck Gerhard | 12 |
| #2 | Ruck Gerhard Erwin | 1 |
| #3 | Ortmeier Helmut Franz Xaver | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2014023491A1 | Diagonal fan | |
| DE102012019419A1 | Diagonal ventilator used in e.g. piping system, has suction unit which is provided with filter unit for transferring gaseous medium to diagonal running wheel of blades | |
| DE102012106412A1 | Diagonal impeller for a diagonal fan and diagonal fan | |
| DE102012106411A1 | Diagonal impeller for a diagonal fan and diagonal fan | |
| DE102010047489A1 | Wall mounted fan has guide device that is provided adjacent to mixed flow impeller for increasing pressure of gaseous medium, and closure flap including drive unit for closing pipe ventilator | |
| DE102010032168A1 | Diagonal fan | |
| EP1544472A2 | Duct blower |