Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4539547 | Low liquid level sensing and warning circuit | Clement W. Rowan | 1985-09-03 |
| 4467156 | Liquid level sensor switch | Edwin A. Dvorak, Boris Puscasu, Gary A. Pniewski | 1984-08-21 |