Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7411489 | Self-adjusting dual technology occupancy sensor system and method | Brian Eugene Elwell | 2008-08-12 |
| 4751399 | Automatic lighting device | Philip A. Koehring | 1988-06-14 |