| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Selecting | |
| #2 | Electric switches |
KARL HERSEN has a total of 13 patent applications. Its first patent ever was published in 1923. It filed its patents most often in Germany. Its main competitors in its focus markets telecommunications and electrical machinery and energy are FRITZ ALDENDORFF, FRIEDRICH MERK and LUCAS PIERRE.
| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 13 |
| # | Industry | |
|---|---|---|
| #1 | Telecommunications | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Selecting | |
| #2 | Electric switches |