Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6743151 | Auto-calibrating force and direction sensing scoring system for fencing | Edward J. Riggs | 2004-06-01 |
| 5870458 | Automatic facsimile/data/voice switch | Edward J. Riggs | 1999-02-09 |