| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | China | 3 | |
| #4 | Republic of Korea | 3 | |
| #5 | EPO (European Patent Office) | 2 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Herbst Frank | 9 |
| #2 | Puschmann Wolf-Dietrich | 5 |
| #3 | Dahlweg Eckhard | 4 |
| #4 | Behrendt Christoph | 3 |
| #5 | Mueller Karsten | 3 |
| #6 | Meyer Thomas | 3 |
| #7 | Xu Nan | 3 |
| #8 | Otto Brigitte | 3 |
| #9 | Schindler Henry | 3 |
| #10 | Dzewas Johannes | 3 |
| Publication | Filing date | Title |
|---|---|---|
| CN102844236A | Rudder for marine vessels | |
| DE102011002832A1 | Rudder for ships with a rudder monitoring device | |
| DE102009047244A1 | Method and connecting device for connecting a rudder or propeller shaft with a driving or driven assembly of a ship | |
| DE102009046162A1 | Oars for ships | |
| DE102006057122A1 | fin rudder |