| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Republic of Korea | 3 | |
| #3 | Netherlands | 3 | |
| #4 | United States | 3 | |
| #5 | WIPO (World Intellectual Property Organization) | 3 | |
| #6 | China | 2 | |
| #7 | Hong Kong | 1 | |
| #8 | Russian Federation | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Doors and windows | |
| #2 | Wing fittings | |
| #3 | Indexing scheme relating to hinges | |
| #4 | Hinges for doors or windows |
| # | Name | Total Patents |
|---|---|---|
| #1 | Otto Gertjan | 16 |
| #2 | Van Der Molen Melvin Jarno | 16 |
| #3 | Lammes Hendrik | 11 |
| #4 | Bakker Gijsbert Henk | 5 |
| #5 | Gertjan Otto | 3 |
| #6 | Melvin Jarno Van Der Molen | 3 |
| #7 | Hendrik Lammes | 2 |
| #8 | Gijsbert Henk Bakker | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL2018868B1 | Revolving door | |
| NL2016678B1 | Revolving door. | |
| NL2016353A | Revolving door. |