Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672941 | Inductorless controlled transition light dimmers optimizing output waveforms | Michael Callahan, Robert M. Goddard | 1997-09-30 |
| 5629607 | Initializing controlled transition light dimmers | Michael Callahan, Robert M. Goddard | 1997-05-13 |