Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5567132 | Seal for pump having an internal gas pump | Francis Dupuis | 1996-10-22 |
| 5308229 | Pump having an internal gas pump | Francis Dupuis | 1994-05-03 |
| 5288213 | Pump having an internal pump | — | 1994-02-22 |
| 4924180 | Apparatus for detecting bearing shaft wear utilizing rotatable magnet means | Gregory W. Miller | 1990-05-08 |