Top Inventors at Et Water Systems All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | Patrick B. Halahan | 4 |
| 2 | Bruce J. Cardinal | 2 |
| 3 | Edwin Waldemar Veelo | 2 |
| #4 | Gordon A. Stewart | 2 |
| #5 | Gregor Angus Berkowitz | 2 |
| #6 | J. Patrick McIntyre | 2 |
| #7 | Kyle Prodromou Schien | 2 |
| #8 | Lee M. Williams | 2 |
| #9 | Mark Coopersmith | 2 |
| #10 | Mark Elliot | 2 |
| #11 | Mark Puckett | 2 |
| #12 | Michael Fogarty | 2 |
| #13 | Peter Bice | 2 |