| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Denmark | 2 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | Finland | 2 | |
| #4 | Norway | 2 | |
| #5 | Sweden | 2 | |
| #6 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Swimming pools | |
| #3 | Safes | |
| #4 | General building constructions | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kaellstroem Krister | 10 |
| #2 | Kellstrom K | 2 |
| Publication | Filing date | Title |
|---|---|---|
| EP0221868A2 | A fire resistant wall construction | |
| EP0222720A2 | A fire resistant wall element |