| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Australia | 2 | |
| #3 | Canada | 2 | |
| #4 | Netherlands | 2 | |
| #5 | United States | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | Brazil | 1 | |
| #8 | China | 1 | |
| #9 | Republic of Korea | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Medical technology | |
| #3 | Transport | |
| #4 | Control |
| # | Technology | |
|---|---|---|
| #1 | Chairs and beds | |
| #2 | Operating tables | |
| #3 | Vehicle seats | |
| #4 | Teaching materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Engels Paul Arthur | 15 |
| #2 | Van Amerongen Gaston Lionel | 9 |
| #3 | De Kroon Johannes Henricus Mar | 6 |
| #4 | Amerongen Gaston Lionel Van | 4 |
| #5 | De Kroon Johannes Henricus Maria | 2 |
| #6 | Kroon Johannes Henricus Maria | 2 |
| #7 | Kroon Johannes Hendricus Maria | 1 |
| #8 | Kroon Johannes Henricus Maria De | 1 |
| #9 | Lionel Engels Paul Arthur De K | 1 |
| #10 | De Kroon Joannes Henricus Mari | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL1024413C2 | Height-adjustable work chair. | |
| NL1020201C1 | Adjustable chair for medical and paramedical diagnosis and treatment. | |
| EP0397275A1 | A structural model of the human craniomandibular system |