| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 5 | |
| #2 | China | 4 | |
| #3 | Germany | 4 | |
| #4 | Canada | 2 | |
| #5 | Norway | 2 | |
| #6 | United States | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 | |
| #8 | Finland | 1 | |
| #9 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Environmental technology | |
| #3 | Machine tools | |
| #4 | Machines | |
| #5 | Mechanical elements | |
| #6 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Unspecified technologies | |
| #3 | Ships | |
| #4 | Climate change mitigation in transportation | |
| #5 | Gearing | |
| #6 | Making gears or toothed racks | |
| #7 | Dynamo-electric machines | |
| #8 | Auxiliaries on vessels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Reuter Reinhold | 13 |
| #2 | Kaul Stefan | 9 |
| #3 | Heer Manfred | 8 |
| #4 | Brabeck Stephan | 4 |
| #5 | Jansen Peter | 3 |
| #6 | Manfred Heer | 2 |
| #7 | Stein Peter | 2 |
| #8 | Mueller Lutz | 2 |
| #9 | Michael Potts | 1 |
| #10 | Schuring Ingo | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CN101218148A | Ship propulsion unit and ship propulsion method | |
| CN103786854A | Ship propulsion unit | |
| US6899576B2 | Twin-propeller drive for watercraft | |
| DE10206530A1 | Propulsion for water vehicles | |
| DE10054148A1 | Ship, especially fast ferry with PoD drive | |
| DE10044101A1 | Drive for fast watercraft | |
| DE19960577A1 | Device for changing the direction of travel of a watercraft | |
| KR20000053042A | Dual propeller propulsion system for a water craft |