| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | France | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Ladders | |
| #2 | Hand carried bags |
| # | Name | Total Patents |
|---|---|---|
| #1 | Luckey Wilhelm | 8 |
| Publication | Filing date | Title |
|---|---|---|
| DE3118322C1 | Collapsible ladder | |
| DE3105467A1 | Device to prevent theft of luggage and the like | |
| DE2828211B1 | Holding and carrying device for a collapsible ladder | |
| DE2733944A1 | Collapsible assembled non-combustible ladder - has movable strip mounted rungs secured by press nipples or sockets and has loop fixture over top rung | |
| US4098372A | Collapsible ladder | |
| CA1050943A | Collapsible ladder | |
| CH614757A5 | Collapsible ladder | |
| ATA104177A | Foldable ladder | |
| DE2548867A1 | Coiled emergency fire escape ladder - comprises noncombustible metal side strips and stackable metal rungs |