Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8535014 | System and method for explosion-proof pump | Thomas Joseph Burch, Jr., Jay Edward Collins, James C. Erhart | 2013-09-17 |
| 6495040 | Septic tank filtering system | Kenneth E. Zoeller, Matthew E. Byers, William V. West | 2002-12-17 |
| 6364620 | Submersible pump containing two levels of moisture sensors | John Zoeller | 2002-04-02 |
| 6331247 | Septic tank filtering system | Kenneth E. Zoeller, Matthew E. Byers, William V. West | 2001-12-18 |
| 6136190 | Septic tank filtering system | Kenneth E. Zoeller, Matthew E. Byers, William V. West | 2000-10-24 |