| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 25 | |
| #2 | Portugal | 19 | |
| #3 | Denmark | 13 | |
| #4 | United Kingdom | 9 | |
| #5 | Japan | 6 | |
| #6 | Canada | 5 | |
| #7 | Australia | 4 | |
| #8 | Finland | 4 | |
| #9 | Sweden | 4 | |
| #10 | United States | 4 | |
| #11 | Austria | 2 | |
| #12 | Hungary | 1 | |
| #13 | Luxembourg | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Packaging and shipping | |
| #5 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Scaffolding | |
| #2 | Swimming pools | |
| #3 | Unspecified technologies | |
| #4 | Nails | |
| #5 | General building constructions | |
| #6 | Containers for goods storage | |
| #7 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Langer Ruth | 68 |
| #2 | Layher Ulrich | 11 |
| #3 | Ruuto Rangaa | 6 |
| #4 | Langer Geb Layher Ruth | 2 |
| #5 | Lanager Ruth | 1 |
| #6 | Ururitsuhi Raiaa | 1 |
| Publication | Filing date | Title |
|---|---|---|
| PT89965A | Transportation device for scaffolding armacons | |
| PT88571A | Scaffolding path of scaffolding | |
| LU87215A1 | Rising device for scaffolding with at least one stair | |
| CA1164512A | Safety device to prevent the lifting of scaffolding |