| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Australia | 1 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Emergency protective circuit arrangements | |
| #2 | Measuring electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hackl Dieter | 5 |
| #2 | Kammer Michael | 3 |
| #3 | Kaul Karl-Hans | 3 |
| #4 | Kaul Karl-Hans Dipl Ing | 2 |
| #5 | Hackl Dieter Dipl Ing | 2 |
| #6 | Macht Burkhard | 2 |
| #7 | Kammer M | 1 |
| #8 | Hackl D | 1 |
| #9 | Schepp Karl | 1 |
| #10 | Schepp Karl Dipl Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE19826410A1 | Insulation and fault current monitoring method for electrical AC network | |
| DE4339946A1 | Method and device for monitoring the insulation of unearthed direct and alternating current networks | |
| DE4234808A1 | Method for determining the electrical system leakage values in ungrounded electrical networks | |
| DE3112952A1 | Method and device for determining the total lead impedance in an ungrounded AC network |