Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8398376 | Dry pumps | — | 2013-03-19 |
| 7819646 | Rotary piston vacuum pump with washing installation | Clive Marcus Lloyd Tunna, Frederick Underwood | 2010-10-26 |
| 5609369 | Clamp apparatus with opening for a probe | Anthony John Wilder | 1997-03-11 |