| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | Brazil | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Republic of Korea | 1 | |
| #6 | Singapore | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Transport | |
| #3 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Ships | |
| #3 | Construction of bridges |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kalkman Pieter | 10 |
| #2 | Pieter Kalkman | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL2011603C2 | Running board installation and vessel with such running board installation. | |
| NL2011368C2 | Crane. | |
| NL2010094C2 | Tap with shock compensation. |