Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6107755 | Modular, configurable dimming ballast for a gas-discharge lamp | Robert H. Katyl, Robert M. Murcko, David W. Dranchak, James R. Petrozello | 2000-08-22 |
| 5908235 | Ballast fixture for fluorescent lighting | James R. Petrozello, Fletcher W. Chapin, David W. Dranchak, Robert M. Murcko, Robert H. Katyl +1 more | 1999-06-01 |