Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7300327 | Method for constructing a scotopic after-glow lamp | Donald P. Northrop | 2007-11-27 |
| 7234844 | Light emitting diode (L.E.D.) lighting fixtures with emergency back-up and scotopic enhancement | Phillip Watts | 2007-06-26 |
| 7123130 | Combination L.E.D. emergency lamp, glass cutter hammer pick with smoke triggered power on | — | 2006-10-17 |
| 7015636 | Balanced blue spectrum therapy lighting | — | 2006-03-21 |
| 6917154 | Scotopic after-glow lamp | Donald P. Northrop | 2005-07-12 |
| 6139164 | Adjustable mobile light panel stand | Francis M. Wile | 2000-10-31 |
| 5733032 | Mobile light panel stand | Francis M. Wile | 1998-03-31 |