Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7650724 | Tube with external channel | Richard Anthony Dowzall | 2010-01-26 |
| 6827164 | Industrial truck | Anthony J. Palumbo, Jeffrey T. Major | 2004-12-07 |
| 6629814 | Low profile pump | Stephen N. McEwen | 2003-10-07 |
| 6125883 | Floor mounted double containment low profile sump pump assembly | John L. Creps | 2000-10-03 |
| 6050788 | Pump with improved seal for filtration systems | Stephen N. McEwen, Robert F. Benschoter, Scott M. McEwen, Anthony J. Palumbo | 2000-04-18 |
| 5961847 | Filter apparatus with dual drive loops | John L. Creps, Stephen N. McEwen, Clayton E. Tenniswood | 1999-10-05 |
| 5655849 | Couplings for joining shafts | Stephen N. McEwen, Robert F. Benschoter, Scott M. McEwen, Anthony J. Palumbo | 1997-08-12 |
| 5589318 | High contrast photographic silver halide material | Allison Hazel C. Dale, Roger H. Piggin, Paul R. McIntyre | 1996-12-31 |
| 5503520 | Pump for filtration systems | Stephen N. McEwen, Robert F. Benschoter, Scott M. McEwen, Anthony J. Palumbo | 1996-04-02 |