| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Republic of Korea | 10 | |
| #2 | China | 5 | |
| #3 | United States | 5 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Mechanical elements | |
| #3 | Measurement | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Marine propulsion | |
| #2 | Ships | |
| #3 | Pistons and sealings | |
| #4 | Measuring length, angles and areas | |
| #5 | Servomotors | |
| #6 | Special measuring | |
| #7 | Gearing | |
| #8 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Der Kam Aad | 6 |
| #2 | Drost Albert | 5 |
| #3 | Van Der Ven Bart | 4 |
| #4 | Bilic Davor | 3 |
| #5 | De Bruin Jan Kees | 3 |
| #6 | Van Loon Jeroen | 3 |
| #7 | Van De Sande Jan | 2 |
| #8 | Riemeijer Reyer | 2 |
| #9 | De Lange Robert | 2 |
| #10 | Janssen Wil | 2 |
| Publication | Filing date | Title |
|---|---|---|
| KR20190095317A | Lifting spindle arrangement for ship's retractable thruster unit | |
| KR20190057375A | How to install a hub cap on a ship's propeller and hub | |
| KR20160145563A | A sealing arrangement for an underwater mountable thruster of a marine vessel | |
| CN107428402A | Arrange the method and its lubricating arrangement of the lubrication of the controlledpiston formula propeller system of marine ship |