| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 6 | |
| #2 | Netherlands | 6 | |
| #3 | United States | 4 | |
| #4 | Australia | 2 | |
| #5 | Canada | 2 | |
| #6 | Hong Kong | 2 | |
| #7 | Brazil | 1 | |
| #8 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Measurement | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Foundations and excavations | |
| #3 | Mining | |
| #4 | Analysing materials | |
| #5 | Ships | |
| #6 | Measuring distances | |
| #7 | Geophysics | |
| #8 | Measuring force, work and fluid pressure |
| # | Name | Total Patents |
|---|---|---|
| #1 | Looijen Peter | 9 |
| #2 | Looijen Peter Nicolaas | 7 |
| #3 | Peter Looijen | 5 |
| #4 | Peter Nicolaas Looijen | 3 |
| #5 | Ruijtenbeek David Steven | 2 |
| #6 | Nebbeling Henk | 1 |
| #7 | Henk Nebbeling | 1 |
| #8 | David Steven Ruijtenbeek | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL2017585B1 | Geotechnical apparatus | |
| NL2017574B1 | Penetrometer | |
| NL2016557B1 | Pressure measurement device. | |
| NL2015850B1 | Geotechnical apparatus comprising at least one rod provided with a probe. | |
| NL2012885B1 | Method, handling unit and stand for acquiring a sample from a seabed top layer. | |
| NL2012723A | Offshore drilling installation and method for offshore drilling. |