Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7131213 | Fluid level measuring device | John Dougherty, Steven Marek, Michael Schmidt | 2006-11-07 |
| 6988403 | Fluid level measuring device | John Dougherty, Steven Marek | 2006-01-24 |