| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Singapore | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | United States | 3 | |
| #4 | African Regional Industrial Property Organization | 1 | |
| #5 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Weapons |
| # | Technology | |
|---|---|---|
| #1 | Ships | |
| #2 | Earth drilling | |
| #3 | Hydraulic engineering | |
| #4 | Marine propulsion | |
| #5 | Military vessels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vandenworm Nicolaas J | 10 |
| #2 | Vandenworm Nicolaas Johannes | 2 |
| #3 | Vandenworm Nicolaas | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2015088745A1 | Buoyant structure | |
| WO2015088746A1 | Semisubmersible with tunnel structure | |
| US2016031534A1 | Buoyant structure | |
| US8869727B1 | Buoyant structure | |
| WO2013022484A1 | Stable offshore floating depot | |
| AP201105907A0 | Offshore buoyant drilling, production, storage andoffloading structure. |