| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 6 | |
| #2 | Norway | 3 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | United States | 2 | |
| #6 | Denmark | 1 | |
| #7 | Finland | 1 | |
| #8 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Alarm systems | |
| #2 | Analysing materials | |
| #3 | Measuring temperature |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gysell B | 7 |
| #2 | Pehrsson M | 2 |
| #3 | Pehrsson Matz | 2 |
| #4 | Andersson Ingvar | 2 |
| #5 | Gysell Bjoern | 2 |
| #6 | Andersson I | 2 |
| #7 | Johansson S | 1 |
| #8 | Persson G | 1 |
| #9 | Gysell Bjorn | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2410035A1 | ALARM | |
| DE2250820A1 | MEASURING OR INDICATOR FOR SMOKE OD. DGL |