Issued Patents All Time
Showing 26–48 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5757004 | Motion detector with external range adjustment | Donald R. Sandell | 1998-05-26 |
| 5675193 | Manual override mechanism for automatic switching circuit | — | 1997-10-07 |
| 5649761 | Motion detector with side-pivoting light fixture | Donald R. Sandell | 1997-07-22 |
| 5579192 | Thyristor power control circuit | — | 1996-11-26 |
| 5560101 | Method of installing an electrical device on an electrical junction box | Donald R. Sandell | 1996-10-01 |
| D372203 | Mounting plate for a passive infrared motion detector with light fixture | Donald R. Sandell | 1996-07-30 |
| 5534850 | Transient control circuit for occupancy detector | — | 1996-07-09 |
| D366222 | Mounting plate for passive infrared motion detector with light fixture | Donald R. Sandell | 1996-01-16 |
| 5485011 | Two-sided integrated-circuit PIR sensor package | Donald R. Sandell | 1996-01-16 |
| 5453622 | Wide-angle motion detector with close-in, prismoidal reflector | Donald R. Sandell | 1995-09-26 |
| 5442132 | Apparatus for installing a motion detector, lighting fixture or the like | Donald R. Sandell | 1995-08-15 |
| 5434764 | Lighting fixture with integral motion detector | Donald R. Sandell | 1995-07-18 |
| D359008 | Mounting plate for a passive infrared motion detector with light fixture | Donald R. Sandell | 1995-06-06 |
| 5418368 | Wide-angle motion detector with close-in reflector | Donald R. Sandell | 1995-05-23 |
| 5406083 | Motion detector with two-sided PIR sensor in reflective arrangement | Donald R. Sandell | 1995-04-11 |
| 5386210 | Method and apparatus for detecting entry | — | 1995-01-31 |
| 5381011 | Motion detector with two-sided PIR sensor in refractive arrangement | Donald R. Sandell | 1995-01-10 |
| 5308985 | Wide-angle passive infrared radiation detector | — | 1994-05-03 |
| 5309147 | Motion detector with improved signal discrimination | Scott T. Evans | 1994-05-03 |
| 5291020 | Method and apparatus for detecting direction and speed using PIR sensor | — | 1994-03-01 |
| 5282118 | Lighting fixture with integral motion detector | — | 1994-01-25 |
| 5121287 | Receiver/adapter for lamp control | — | 1992-06-09 |
| 5066855 | Infrared intrusion detector | — | 1991-11-19 |