Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6505470 | System for detecting overflow of a tank | Thomas K. Drube, Claus Emmer | 2003-01-14 |
| 6382235 | Device for over-pressure protection for a storage tank | Thomas K. Drube, Kristy M. Malecha, MATTHEW D. SASSE | 2002-05-07 |