Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754201 | Magnetic low load factor series ballast circuit | David W. Knoble | 1988-06-28 |
| 4691341 | Method of transferring digital information and street lighting control system | David W. Knoble | 1987-09-01 |