Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647656 | Illuminated fluid level indicator | David E. Brown, Mark Colman | 1997-07-15 |
| 5645336 | Illuminated fluid level indicator | David E. Brown, Mark Colman | 1997-07-08 |
| 5351036 | Microwave-based point liquid level monitoring system | David P. Brown, Stephen P. Hebeisen | 1994-09-27 |