| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | Austria | 6 | |
| #3 | Switzerland | 3 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Measuring temperature | |
| #2 | Packaging |
| # | Name | Total Patents |
|---|---|---|
| #1 | Peter Fischer Hansen Jens | 3 |
| #2 | Helge Petersen Dipl-Ing | 2 |
| #3 | Fischer Hansen Jens Peter | 2 |
| #4 | Hansen Jens Peter Fischer | 1 |
| #5 | Hartmann Julius Dr Techn | 1 |
| #6 | Fischer Hansen Jens Peder | 1 |
| #7 | Petersen Helge | 1 |
| #8 | Jens Peter Fischer Hansen | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1929051A1 | Method and device for filling thermometer ampoules | |
| DE1926545A1 | Housing for hot water meter | |
| DE1902291A1 | Hot water meter | |
| DE1901427A1 | Housing for hot water meter | |
| DE1573214A1 | Hot water meter | |
| DE876777C | Hot water meter based on the partial flow and calorimeter principle |