Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7616090 | Electronic security system | Donald D. Baker, William P. Dye | 2009-11-10 |
| 5610794 | Door holder having electromagnetic flux generator and power control circuit | William P. Dye | 1997-03-11 |
| 5566376 | Electromagnetic coil for use in a door holder system | William P. Dye | 1996-10-15 |
| 5555484 | Electromagnetic door holder system | William P. Dye | 1996-09-10 |