Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5490762 | Weep hole plug for a fluid circulating pump | Joel D. Feucht, Stephen G. Shoup | 1996-02-13 |
| 5338153 | Non-drip fluid circulating pump | Joel D. Feucht, Stephen G. Shoup | 1994-08-16 |
| 5058453 | Torsional vibration damper | Lawrence F. Graham | 1991-10-22 |
| 4293290 | Positive displacement rotary pump with bearings in countersunk portions of the rotors | — | 1981-10-06 |