| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 20 | |
| #2 | Finland | 9 | |
| #3 | Norway | 7 | |
| #4 | Denmark | 5 | |
| #5 | Germany | 4 | |
| #6 | United Kingdom | 3 | |
| #7 | Austria | 2 | |
| #8 | Switzerland | 2 | |
| #9 | France | 2 | |
| #10 | Netherlands | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Materials and metallurgy | |
| #3 | Machine tools | |
| #4 | Consumer goods | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Roof coverings | |
| #2 | General building constructions | |
| #3 | Structural elements | |
| #4 | Soldering, welding and flame cutting | |
| #5 | Metal tempering | |
| #6 | Sound-producing devices | |
| #7 | Pig-iron processing | |
| #8 | Iron and steel production | |
| #9 | Furnaces | |
| #10 | Casting metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kero E | 11 |
| #2 | Kero Ernst | 6 |
| #3 | Baker R A | 3 |
| #4 | Grip C | 3 |
| #5 | Aberg E | 3 |
| #6 | Ridderstraole Carl-Erik | 1 |
| #7 | Ridderstraole C-E | 1 |
| #8 | Malmqvist K | 1 |
| #9 | Aaberg | 1 |
| #10 | Stromberg J | 1 |
| Publication | Filing date | Title |
|---|---|---|
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| DE2616058A1 | SHEET PROFILE | |
| CH583355A5 | Insulated interlocked bent-edge sheet metal panel roof - with soft heat-insulating material pressed against underside, and raised edge sections | |
| DE2513719A1 | INSULATED ROOF | |
| DE2452486A1 | PROCESS FOR MANUFACTURING A WORKPIECE FROM HARDENED STEEL |