| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 2 | |
| #2 | Norway | 2 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Japan | 1 | |
| #8 | Netherlands | 1 | |
| #9 | Sweden | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Civil engineering | |
| #3 | Medical technology | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Elevators and escalators | |
| #2 | Scaffolding | |
| #3 | Lifting and pushing | |
| #4 | Operating tables | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Boer Johan Gerard De | 3 |
| #2 | Reus Jacobus De | 2 |
| #3 | Blokland Adriaan | 1 |
| #4 | De Boer Johan Gerard | 1 |
| #5 | De Boer J G | 1 |
| #6 | Yaakoupasu Do Reusu | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3108879A1 | Safety mechanism for a lift or a similar transport device | |
| NL8004743A | Stair climbing device for a wheelchair or similar mobile transportation. | |
| FR2384708A1 | Structure for inspecting interior of ships and storage tanks - has permanent pylon supporting removable horizontal girder on vertically movable platform (NO 16.10.78) | |
| GB1530715A | Stairway elevator |