Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990799 | Chair occupancy monitoring device | Keith Charles | 1999-11-23 |
| 5796059 | Pressure-sensitive switch apparatus | — | 1998-08-18 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990799 | Chair occupancy monitoring device | Keith Charles | 1999-11-23 |
| 5796059 | Pressure-sensitive switch apparatus | — | 1998-08-18 |