Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8177397 | LED heat management system | David W. Knoble, Carlton Plunk | 2012-05-15 |
| 8076859 | Emergency sign power supply with battery charger | David W. Knoble | 2011-12-13 |
| 8070328 | LED downlight | David W. Knoble, Brian McMillin | 2011-12-06 |
| 8040078 | LED dimming circuit | David W. Knoble | 2011-10-18 |
| 7988327 | LED luminaire | David W. Knoble | 2011-08-02 |
| 7887205 | Rotatable emergency light with direct drive motor | David W. Knoble | 2011-02-15 |
| D504705 | Combination exit sign and emergency lighting unit | Dennis K. Gregory, David W. Knoble, Charles Kelpin | 2005-05-03 |
| D489766 | Exit sign | Dennis K. Gregory, David W. Knoble, Charles Kelpin | 2004-05-11 |
| 6141234 | Power supply with battery charger for emergency sign | David W. Knoble | 2000-10-31 |
| 5815067 | Single control wire device for HID dimming | David W. Knoble, Robert D. Munson, James V. Olson | 1998-09-29 |
| 5633779 | Relay control circuit and method for controlling a relay | David W. Knoble, James V. Olson | 1997-05-27 |