Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6859141 | Electric field proximity detector for floating and grounded targets | Andre John Van Schyndel | 2005-02-22 |
| 6771173 | System and device for monitoring and signaling personnel presence | Stephen S. Jackson | 2004-08-03 |