Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7198311 | Elevator for pipe | Paul Janke | 2007-04-03 |
| 7157011 | Vent for leach field aeration | — | 2007-01-02 |
| 6969464 | Dewatering a leach field | — | 2005-11-29 |
| 6959882 | Watering and aerating soil with a drip line | — | 2005-11-01 |
| 6923905 | Apparatus for subsurface aerated treatment of wastewater | — | 2005-08-02 |
| 6887383 | Method for subsurface aerated treatment of wastewater | — | 2005-05-03 |
| 6814866 | Heating a leach field | — | 2004-11-09 |
| 6726401 | Treatment of a leach field | — | 2004-04-27 |
| 6485647 | Method and apparatus for treating leach fields | — | 2002-11-26 |
| 6364628 | Vertical shaft blower on trailer | Jerry Giroux | 2002-04-02 |
| 6018909 | Subsurface soil conditioning | — | 2000-02-01 |