Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10392281 | Meander septic tank | Eric S. Ball | 2019-08-27 |
| 6540920 | Wastewater treatment system utilizing textile filter media | Harold L. Ball, Eric S. Ball | 2003-04-01 |
| D461870 | Tank | Harold L. Ball, Eric S. Ball | 2002-08-20 |
| 6372137 | Wastewater treatment system for maximizing effluent quality | — | 2002-04-16 |
| D445476 | Tank | Harold L. Ball, Eric S. Ball | 2001-07-24 |
| 5531894 | Method of treating wastewater | Harold L. Ball, Eric S. Ball, Jeffrey L. Ball | 1996-07-02 |
| 5480561 | Method and apparatus for treating wastewater | Harold L. Ball, Eric S. Ball, Jeffrey L. Ball | 1996-01-02 |
| 5360556 | Method of feeding wastewater effluent to filter bed through parallel conduits | Harold L. Ball, Eric S. Ball, Jeffrey L. Ball | 1994-11-01 |