| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 5 | |
| #2 | Japan | 2 | |
| #3 | United States | 2 | |
| #4 | Belgium | 1 | |
| #5 | Germany | 1 | |
| #6 | EPO (European Patent Office) | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bos Wouter A | 2 |
| #2 | Bos Wouter Arie | 2 |
| #3 | Uooteru Arii Bosu | 2 |
| Publication | Filing date | Title |
|---|---|---|
| NL7904944A | Drive box. | |
| NL7901450A | Hopper dredger suction head coupling - is telescopic to pipe connecting to vessel with bottom probe unit preceding bead as vessel | |
| NL7812140A | Trailing dredger suction head - has suction pipe extending into space inside knives in ring | |
| NL7805116A | Cutting head with flat bottom for cutter piston. | |
| NL7316200A | Anchoring for floating dredger with cables, winches and anchors - has bow and stern cables guided over hydraulic cylinder-operated pulleys |