Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 8546716 | Gas-blast circuit breaker with a radial flow opening | Martin Kriegel, Olaf Hunger, Marialuisa Perela | 2013-10-01 | $3,616,000 |
| 8410388 | Self-blowout circuit breaker having a filling and overpressure valve | Martin Kriegel, Daniel Ohlsson, Navid Mahdizadeh, Olaf Hunger, Timo Kehr | 2013-04-02 | $1,857,000 |
| 8263892 | Gas-insulated high-voltage switch | Martin Kriegel, Olaf Hunger, Peter Diggelmann | 2012-09-11 | $6,343,000 |