Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9035211 | Gas blast interrupter | — | 2015-05-19 |
| 8063335 | Gas exhaust for circuit breaker | Wolfgang Grieshaber, Victor Hermosillo, Charles R. Hilland | 2011-11-22 |
| 7102101 | High voltage circuit breaker with internal tank heater | David Scott Johnson, Jeffry R. Meyer | 2006-09-05 |