Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |