| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 12 | |
| #2 | Austria | 2 | |
| #3 | Switzerland | 1 | |
| #4 | Italy | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Thermal processes | |
| #3 | Measurement | |
| #4 | Electrical machinery and energy | |
| #5 | Basic communication technologies | |
| #6 | Consumer goods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dold Otto | 5 |
| #2 | Kluge Wolfram | 4 |
| #3 | Irmisch Arndt Dipl-Ing | 2 |
| #4 | Dold Otto Ing Grad | 1 |
| #5 | Mau Gert | 1 |
| #6 | Franke Rudolf | 1 |
| #7 | Hof Harald Dipl-Ing | 1 |
| #8 | Haller Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2935777A1 | Electronic temp. limitation switch for boiler, heater etc. - uses differential amplifier to compare detected and preset temps. | |
| DE2315649A1 | SAFETY CIRCUIT FOR AUTOMATIC COMBUSTION MACHINES IN GAS AND OIL COMBUSTION SYSTEMS | |
| DE2247918A1 | SAFETY CIRCUIT FOR AUTOMATIC FIRE IN GAS AND OIL FIRING SYSTEMS |